Dog Days (book)
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The dog days or are the hot, sultry days of
summer Summer is the hottest of the four temperate seasons, occurring after spring and before autumn. At or centred on the summer solstice, the earliest sunrise and latest sunset occurs, daylight hours are longest and dark hours are shortest, wit ...
. They were historically the period following the
heliacal rising The heliacal rising ( ) or star rise of a star occurs annually, or the similar phenomenon of a planet, when it first becomes visible above the eastern horizon at dawn just before sunrise (thus becoming "the morning star") after a complete orbit of ...
of the star system
Sirius Sirius is the list of brightest stars, brightest star in the night sky. Its name is derived from the Ancient Greek language, Greek word , or , meaning 'glowing' or 'scorching'. The star is designated α Canis Majoris, Latinisation ...
(known colloquially as the "Dog Star"), which
Hellenistic astrology Hellenistic astrology is a tradition of horoscopic astrology that was developed and practiced in the late Hellenistic period in and around the Mediterranean Basin region, especially in Egypt. The texts and technical terminology of this tradition o ...
connected with
heat In thermodynamics, heat is defined as the form of energy crossing the boundary of a thermodynamic system by virtue of a temperature difference across the boundary. A thermodynamic system does not ''contain'' heat. Nevertheless, the term is al ...
,
drought A drought is defined as drier than normal conditions.Douville, H., K. Raghavan, J. Renwick, R.P. Allan, P.A. Arias, M. Barlow, R. Cerezo-Mota, A. Cherchi, T.Y. Gan, J. Gergis, D.  Jiang, A.  Khan, W.  Pokam Mba, D.  Rosenfeld, J. Tierney, an ...
, sudden
thunderstorm A thunderstorm, also known as an electrical storm or a lightning storm, is a storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere, known as thunder. Relatively weak thunderstorms are someti ...
s,
lethargy Lethargy is a state of tiredness, sleepiness, weariness, fatigue, sluggishness or lack of energy. It can be accompanied by depression, decreased motivation, or apathy. Lethargy can be a normal response to inadequate sleep, overexertion, overwo ...
,
fever Fever, also referred to as pyrexia, is defined as having a body temperature, temperature above the human body temperature, normal range due to an increase in the body's temperature Human body temperature#Fever, set point. There is not a single ...
, mad dogs, and bad
luck Luck is the phenomenon and belief that defines the experience of improbable events, especially improbably positive or negative ones. The naturalistic interpretation is that positive and negative events may happen at any time, both due to rand ...
. They are now taken to be the hottest, most uncomfortable part of summer in the
Northern Hemisphere The Northern Hemisphere is the half of Earth that is north of the Equator. For other planets in the Solar System, north is defined as being in the same celestial hemisphere relative to the invariable plane of the solar system as Earth's Nort ...
.


Etymology

The English name is a
calque In linguistics, a calque () or loan translation is a word or phrase borrowed from another language by literal word-for-word or root-for-root translation. When used as a verb, "to calque" means to borrow a word or phrase from another language wh ...
of the
Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...
' (."the
puppy A puppy is a juvenile dog. Some puppies can weigh , while larger ones can weigh up to . All healthy puppies grow quickly after birth. A puppy's coat color may change as the puppy grows older, as is commonly seen in breeds such as the Yorksh ...
days"), itself a calque of the
ancient Greek Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic peri ...
''kynádes hēmérai''.. The Greeks knew the star α Canis Majoris by several names, including
Sirius Sirius is the list of brightest stars, brightest star in the night sky. Its name is derived from the Ancient Greek language, Greek word , or , meaning 'glowing' or 'scorching'. The star is designated α Canis Majoris, Latinisation ...
"Scorcher" (, ''Seírios''), Sothis (, ''Sôthis'', a transcription of
Egyptian Egyptian describes something of, from, or related to Egypt. Egyptian or Egyptians may refer to: Nations and ethnic groups * Egyptians, a national group in North Africa ** Egyptian culture, a complex and stable culture with thousands of years of ...
'' Spdt''), and the Dog Star (, ''Kúōn'').. The last name reflects the way Sirius follows the
constellation A constellation is an area on the celestial sphere in which a group of visible stars forms Asterism (astronomy), a perceived pattern or outline, typically representing an animal, mythological subject, or inanimate object. The origins of the e ...
Orion into the night sky.


History

Sirius is by far the brightest proper star in the
night sky The night sky is the nighttime appearance of celestial objects like stars, planets, and the Moon, which are visible in a clear sky between sunset and sunrise, when the Sun is below the horizon. Natural light sources in a night sky include ...
, which caused
ancient astronomers Astronomy is the oldest of the natural sciences, dating back to antiquity, with its origins in the religious, mythological, cosmological, calendrical, and astrological beliefs and practices of prehistory: vestiges of these are still found in ...
to take note of it around the world. In
Egypt Egypt ( ar, مصر , ), officially the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia via a land bridge formed by the Sinai Peninsula. It is bordered by the Mediter ...
, its return to the night sky became known as a precursor to the annual flooding of the
Nile The Nile, , Bohairic , lg, Kiira , Nobiin language, Nobiin: Áman Dawū is a major north-flowing river in northeastern Africa. It flows into the Mediterranean Sea. The Nile is the longest river in Africa and has historically been considered ...
and was worshipped as the goddess
Sopdet Sopdet is the ancient Egyptian name of the star Sirius and its personification as an Egyptian goddess. Known to the Greeks as Sothis, she was conflated with Isis as a goddess and Anubis as a god. Names The exact pronunciation of ancien ...
. In
Greece Greece,, or , romanized: ', officially the Hellenic Republic, is a country in Southeast Europe. It is situated on the southern tip of the Balkans, and is located at the crossroads of Europe, Asia, and Africa. Greece shares land borders with ...
, it became known as the precursor of the unpleasantly hot phase of the summer. Greek poets even recorded the belief that the return of the bright star was responsible for bringing heat and fever with it; it was also associated with sudden
thunderstorm A thunderstorm, also known as an electrical storm or a lightning storm, is a storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere, known as thunder. Relatively weak thunderstorms are someti ...
s. In
Homer Homer (; grc, Ὅμηρος , ''Hómēros'') (born ) was a Greek poet who is credited as the author of the ''Iliad'' and the ''Odyssey'', two epic poems that are foundational works of ancient Greek literature. Homer is considered one of the ...
's ''
Iliad The ''Iliad'' (; grc, Ἰλιάς, Iliás, ; "a poem about Ilium") is one of two major ancient Greek epic poems attributed to Homer. It is one of the oldest extant works of literature still widely read by modern audiences. As with the ''Odysse ...
'', probably composed in the but representing an earlier tradition,
Achilles In Greek mythology, Achilles ( ) or Achilleus ( grc-gre, Ἀχιλλεύς) was a hero of the Trojan War, the greatest of all the Greek warriors, and the central character of Homer's ''Iliad''. He was the son of the Nereid Thetis and Peleus, k ...
's approach toward
Troy Troy ( el, Τροία and Latin: Troia, Hittite language, Hittite: 𒋫𒊒𒄿𒊭 ''Truwiša'') or Ilion ( el, Ίλιον and Latin: Ilium, Hittite language, Hittite: 𒃾𒇻𒊭 ''Wiluša'') was an ancient city located at Hisarlik in prese ...
, where he will slay
Hector In Greek mythology, Hector (; grc, Ἕκτωρ, Hektōr, label=none, ) is a character in Homer's Iliad. He was a Trojan prince and the greatest warrior for Troy during the Trojan War. Hector led the Trojans and their allies in the defense o ...
, is illustrated through an extended metaphor about the baleful effects attending the return of Sirius: The rising of Sirius during this period has been calculated as 19 July ( Julian).. Writing about the same time,
Hesiod Hesiod (; grc-gre, Ἡσίοδος ''Hēsíodos'') was an ancient Greek poet generally thought to have been active between 750 and 650 BC, around the same time as Homer. He is generally regarded by western authors as 'the first written poet i ...
, however, considered the worst and hottest part of the summer to be the days ''before'' Sirius returned to the night sky. During this period, Sirius was invisible from the earth but it was apparently understood to still be in the sky, augmenting the power of the sun: This effect of the combination of Sirius' light with the Sun's was understood to have an effect on plants, animals, and women, as well as men: About a century later, Alcaeus repeated the theme, advising his listeners to "steep your lungs in wine" before the arrival of the star since "women are at their foulest but men are weak since they are parched in head and knees". In the 3rd century,
Aratus Aratus (; grc-gre, Ἄρατος ὁ Σολεύς; c. 315 BC/310 BC240) was a Greek didactic poet. His major extant work is his hexameter poem ''Phenomena'' ( grc-gre, Φαινόμενα, ''Phainómena'', "Appearances"; la, Phaenomena), the fi ...
' ''Phenomena'' describes the time as Sirius blighting the bark of trees with its heat during the time it rises and sets with the sun. The
Kean Kean may refer to: * Kean (name) * Kean (play), ''Kean'' (play), 1838 play by Alexandre Dumas père based on the life of the actor Edmund Kean, and its adaptations: ** Kean (1921 film), ''Kean'' (1921 film), a German silent historical film ** Kean ...
priests of
Zeus Zeus or , , ; grc, Δῐός, ''Diós'', label=Genitive case, genitive Aeolic Greek, Boeotian Aeolic and Doric Greek#Laconian, Laconian grc-dor, Δεύς, Deús ; grc, Δέος, ''Déos'', label=Genitive case, genitive el, Δίας, ''D ...
as Rainmaker and Lord of Moisture observed annual sacrifices before the rise of Sirius to prevent scorching drought.. This practice was credited to the culture hero
Aristaeus A minor god in Greek mythology, attested mainly by Athenian writers, Aristaeus (; ''Aristaios'' (Aristaîos); lit. “Most Excellent, Most Useful”), was the culture hero credited with the discovery of many useful arts, including bee-keeping; ...
.
Aristotle Aristotle (; grc-gre, Ἀριστοτέλης ''Aristotélēs'', ; 384–322 BC) was a Greek philosopher and polymath during the Classical period in Ancient Greece. Taught by Plato, he was the founder of the Peripatetic school of phil ...
mentions the proverbial heat of the dog days as part of his argument against an early formulation of
evolution Evolution is change in the heritable characteristics of biological populations over successive generations. These characteristics are the expressions of genes, which are passed on from parent to offspring during reproduction. Variation ...
in his ''
Physics Physics is the natural science that studies matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge which r ...
''. The Romans continued to blame Sirius for the heat of the season and attendant lethargy and diseases. In his ''
Georgics The ''Georgics'' ( ; ) is a poem by Latin poet Virgil, likely published in 29 BCE. As the name suggests (from the Greek word , ''geōrgika'', i.e. "agricultural (things)") the subject of the poem is agriculture; but far from being an example ...
'',
Vergil Publius Vergilius Maro (; traditional dates 15 October 7021 September 19 BC), usually called Virgil or Vergil ( ) in English, was an ancient Roman poet of the Augustan period. He composed three of the most famous poems in Latin literature: th ...
notes vintners' efforts to protect their work during the time "when the Dog-star cleaves the thirsty Ground".
Seneca Seneca may refer to: People and language * Seneca (name), a list of people with either the given name or surname * Seneca people, one of the six Iroquois tribes of North America ** Seneca language, the language of the Seneca people Places Extrat ...
's
Oedipus Oedipus (, ; grc-gre, Οἰδίπους "swollen foot") was a mythical Greek king of Thebes. A tragic hero in Greek mythology, Oedipus accidentally fulfilled a prophecy that he would end up killing his father and marrying his mother, thereby ...
complains of "the scorching dog-star's fires".
Pliny Pliny may refer to: People * Pliny the Elder (23–79 CE), ancient Roman nobleman, scientist, historian, and author of ''Naturalis Historia'' (''Pliny's Natural History'') * Pliny the Younger (died 113), ancient Roman statesman, orator, w ...
's '' Natural History'' notes an increase in attacks by
dog The dog (''Canis familiaris'' or ''Canis lupus familiaris'') is a domesticated descendant of the wolf. Also called the domestic dog, it is derived from the extinct Pleistocene wolf, and the modern wolf is the dog's nearest living relative. Do ...
s during July and August, and advises feeding them
chicken manure Chicken manure is the feces of chickens used as an organic fertilizer, especially for soil low in nitrogen. Of all animal manures, it has the highest amount of nitrogen, phosphorus, and potassium. Chicken manure is sometimes pelletized for ...
to curb the tendency. In the early 20th century, historians still noted the "discouraging heat" and "oppression" of the dog days of the Roman summer. The period has long featured in
western medicine Medicine is the science and practice of caring for a patient, managing the diagnosis, prognosis, prevention, treatment, palliation of their injury or disease, and promoting their health. Medicine encompasses a variety of health care practice ...
. The 1564 English ''Hope of Health'' counseled that purging (
bloodletting Bloodletting (or blood-letting) is the withdrawal of blood from a patient to prevent or cure illness and disease. Bloodletting, whether by a physician or by leeches, was based on an ancient system of medicine in which blood and other bodily flu ...
and induced
vomiting Vomiting (also known as emesis and throwing up) is the involuntary, forceful expulsion of the contents of one's stomach through the mouth and sometimes the Human nose, nose. Vomiting can be the result of ailments like Food-poisoning, foo ...
) should be avoided during the "Dogge daies" of summer because "the
Sun The Sun is the star at the center of the Solar System. It is a nearly perfect ball of hot plasma, heated to incandescence by nuclear fusion reactions in its core. The Sun radiates this energy mainly as light, ultraviolet, and infrared radi ...
ne is in Leo" and "then is nature burnt vp & made weake". The 1729 British ''Husbandman's Practice'' claimed that "The Heat of the Sun is so violent that Men's bodies at Midnight sweat as at Midday: and if they be hurt, they be more sick than at any other time, yea very near Dead". It therefore advised men to "abstain all this time from women" and to "take heed of feeding violently". In the 1813 ''Clavis Calendria'', the dog days are a time wherein "the Sea boiled, the Wine turned sour, Dogs grew mad, Quinto raged with anger, and all other creatures became languid; causing to man, among other diseases, burning fevers, hysterics, and phrensies". Even after
astrology Astrology is a range of Divination, divinatory practices, recognized as pseudoscientific since the 18th century, that claim to discern information about human affairs and terrestrial events by studying the apparent positions of Celestial o ...
and its influence on health and agriculture waned in importance, the "dog days" continues to be vaguely applied to the hottest days of the summer, with its attendant effects on nature and society. In
North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...
, it became
proverb A proverb (from la, proverbium) is a simple and insightful, traditional saying that expresses a perceived truth based on common sense or experience. Proverbs are often metaphorical and use formulaic speech, formulaic language. A proverbial phra ...
ial among farmers that a dry growing season through the dog days was preferable to the trouble of a wet one: Because "July is typically one of the quietest months of the year for
stock trading In finance, a trade is an exchange of a security (stocks, bonds, commodities, currencies, derivatives or any valuable financial instrument) for "cash", typically a short-dated promise to pay in the currency of the country where the 'exchange' is lo ...
", the term is sometimes used for the lethargic summer markets.


Span

Various computations of the dog days have placed their start anywhere from 3 July to 15 August and lasting for anywhere from 30 to 61 days. They may begin or end with the cosmical rising or heliacal rising of either Sirius in
Canis Major Canis Major is a constellation in the Southern Celestial Hemisphere, southern celestial hemisphere. In the second century, it was included in Ptolemy's 48 constellations, and is counted among the 88 modern constellations. Its name is Latin fo ...
or
Procyon Procyon () is the brightest star in the constellation of Canis Minor and usually the eighth-brightest star in the night sky, with an apparent visual magnitude of 0.34. It has the Bayer designation α Canis Minoris, which is Latinize ...
(the "Little Dog Star") in
Canis Minor Canis Minor is a small constellation in the northern celestial hemisphere. In the second century, it was included as an asterism, or pattern, of two stars in Ptolemy's 48 constellations, and it is counted among the 88 modern constellation ...
and vary by
latitude In geography, latitude is a coordinate that specifies the north– south position of a point on the surface of the Earth or another celestial body. Latitude is given as an angle that ranges from –90° at the south pole to 90° at the north pol ...
, not even being visible throughout much of the Southern Hemisphere. Sirius observes a period of almost exactly 365¼ days between risings, keeping it largely consistent with the Julian but not the Gregorian calendar; nonetheless, its dates occur somewhat later in the year over a span of millennia. In antiquity, the dog days were usually reckoned from the appearance of Sirius around 19 July (Julian) to relieving rains and cool winds, although Hesiod seems to have counted the worst of summer as the days leading up to Sirius's reappearance. In
Anglo-Saxon England Anglo-Saxon England or Early Medieval England, existing from the 5th to the 11th centuries from the end of Roman Britain until the Norman conquest in 1066, consisted of various Anglo-Saxon kingdoms until 927, when it was united as the Kingdom o ...
, the dog days ran from various dates in mid-July to early or mid-September. Canonical "dog daies" were observed from July 7 to September 5 in the 16th-century
English English usually refers to: * English language * English people English may also refer to: Peoples, culture, and language * ''English'', an adjective for something of, from, or related to England ** English national ide ...
liturgies Liturgy is the customary public ritual of worship performed by a religious group. ''Liturgy'' can also be used to refer specifically to public worship by Christians. As a religious phenomenon, liturgy represents a communal response to and partic ...
. They were removed from the prayer books at the restoration of the monarchy in 1660 and their term shortened to the time between July 19 and August 20.. During the British adoption of the Gregorian calendar in 1752, they were shifted to July 30 to September 7. Many modern sources in the
English-speaking world Speakers of English are also known as Anglophones, and the countries where English is natively spoken by the majority of the population are termed the '' Anglosphere''. Over two billion people speak English , making English the largest languag ...
move this still earlier, from July 3 to August 11, ending rather than beginning with or centering on the reappearance of Sirius to the night sky.


Scientific basis

Although Sirius is the brightest proper star in the night sky, it is away from Earth and has no effect whatsoever on the planet's weather or temperature. Although the star continues to return to the night sky in late summer, its position continues to gradually shift relative to the Sun and will rise in the middle of
winter Winter is the coldest season of the year in polar and temperate climates. It occurs after autumn and before spring. The tilt of Earth's axis causes seasons; winter occurs when a hemisphere is oriented away from the Sun. Different cultures ...
in about 10,000 years. The effects of summer heat and rainfall patterns are real, but vary by latitude and location according to many factors. For example,
London London is the capital and largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary down to the North Sea, and has been a majo ...
, UK, is slightly farther north than
Calgary Calgary ( ) is the largest city in the western Canadian province of Alberta and the largest metro area of the three Prairie Provinces. As of 2021, the city proper had a population of 1,306,784 and a metropolitan population of 1,481,806, makin ...
, Canada, but has a milder climate from the presence of the sea and the warm
Gulf Stream The Gulf Stream, together with its northern extension the North Atlantic Current, North Atlantic Drift, is a warm and swift Atlantic Ocean, Atlantic ocean current that originates in the Gulf of Mexico and flows through the Straits of Florida a ...
ocean current, current. A medical institution has reported a connection between Finland's dog days and increased risk of infection in deep surgery wounds, although that research remains unverified.


In popular culture

It is possible that Saint Roch, the legendary medieval patron saint of dogs celebrated by the Catholic Church on 16 August, owes some of his legacy to the dog days. From the period of his self-proclaimed protectorate over the island, the Danish people, Danish adventurer Jørgen Jørgensen is remembered in Iceland as Jørgen the Dog-Day King ( is, Jörundur hundadagakonungur). In western literature, apart from the Ancient Greek literature, Greek and Latin literature, Roman works mentioned above, the dog days appear in John Webster's 1613 play ''The Duchess of Malfi'', Charles Dickens' 1843 novella ''A Christmas Carol'', Richard Harding Davis, R.H. Davis's 1903 short story "The Bar Sinister", J.M. Synge's 1909 poem "Queens", and Richard Adams's 1972 novel ''Watership Down''. They feature in the children's novels ''Tuck Everlasting'' (1973), and ''Diary of a Wimpy Kid: Dog Days (book), Dog Days'' (2009) from the ''Diary of a Wimpy Kid'' series. ''Dog Days (Japanese TV series), Dog Days'' is also the title of a Japanese anime series that premiered in 2011. The story revolves around a boy named Shinku Izumi, who is summoned to an alternate world where the inhabitants have animal ears and tails. In film, ''Dog Day Afternoon'' (1975) and (German language, German for "Dog Days"; 2001) evoke their oppressive seasonal settings. In music, there are Head of David's "Dog Day Sunrise", covered by Fear Factory in 1995; Florence and the Machine's 2009 "Dog Days Are Over";. and Within Temptation's 2013 "Dog Days"; as well as the album ''Dog Days (Atlanta Rhythm Section album), Dog Days'' by the US southern rock band Atlanta Rhythm Section. ''Dog Days (opera), Dog Days'' is also the title of a 2012 opera by composer David T. Little and librettist Royce Vavrek, based on the short story by Judy Budnitz. "Dog-day" promotions are also a common feature in baseball, used by American ballparks to boost ticket sales during mid-afternoon games.


See also

* Silly season * Star lore


Notes


References


Bibliography

* . * . * . * . * . * . * . * . * . * . * . * . * . * . * . * . * . * . * . * . * , excerpted by th
University of Toronto Library
* . * . * , reprinted in 1914 as Vol. XLVII, Pt. 4, of the ''Harvard Classics'' series.


External links

* {{Wiktionary-inline Canis Major History of astrology Roman calendar Summer