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This is a timeline of
Portuguese history, comprising important legal and territorial changes and political events in Portugal and its predecessor states. To read about the background to these events, see
History of Portugal.
Centuries:
3rd BC 2nd BC 1st BC 3rd5th
Fifth is the ordinal form of the number five.
Fifth or The Fifth may refer to:
* Fifth Amendment to the United States Constitution, as in the expression "pleading the Fifth"
* Fifth column, a political term
* Fifth disease, a contagious rash tha ...
6th
6 (six) is the natural number following 5 and preceding 7. It is a composite number and the smallest perfect number.
In mathematics
Six is the smallest positive integer which is neither a square number nor a prime number; it is the second small ...
8th
8 (eight) is the natural number following 7 and preceding 9.
In mathematics
8 is:
* a composite number, its proper divisors being , , and . It is twice 4 or four times 2.
* a power of two, being 2 (two cubed), and is the first number ...
9th10th
10 (ten) is the even natural number following 9 and preceding 11. Ten is the base of the decimal numeral system, by far the most common system of denoting numbers in both spoken and written language. It is the first double-digit number. The rea ...
11th
11 (eleven) is the natural number following 10 and preceding 12. It is the first repdigit. In English, it is the smallest positive integer whose name has three syllables.
Name
"Eleven" derives from the Old English ', which is first attested i ...
12th13th
In music or music theory, a thirteenth is the note thirteen scale degrees from the root of a chord and also the interval between the root and the thirteenth. The interval can be also described as a compound sixth, spanning an octave pl ...
14th
14 (fourteen) is a natural number following 13 (number), 13 and preceding 15 (number), 15.
In relation to the word "four" (4), 14 is spelled "fourteen".
In mathematics
* 14 is a composite number.
* 14 is a square pyramidal number.
* 14 is a s ...
15th
15 (fifteen) is the natural number following 14 (number), 14 and preceding 16 (number), 16.
Mathematics
15 is:
* A composite number, and the sixth semiprime; its proper divisors being , and .
* A deficient number, a smooth number, a lucky ...
16th17th
17 (seventeen) is the natural number following 16 and preceding 18. It is a prime number.
Seventeen is the sum of the first four prime numbers.
In mathematics
17 is the seventh prime number, which makes seventeen the fourth super-prime, as s ...
18th19th
19 (nineteen) is the natural number following 18 and preceding 20. It is a prime number.
Mathematics
19 is the eighth prime number, and forms a sexy prime with 13, a twin prime with 17, and a cousin prime with 23. It is the third full re ...
20th
20 (twenty; Roman numeral XX) is the natural number following 19 and preceding 21. A group of twenty units may also be referred to as a score.
In mathematics
*20 is a pronic number.
*20 is a tetrahedral number as 1, 4, 10, 20.
*20 is the ba ...
21st
21 (twenty-one) is the natural number following 20 and preceding 22.
The current century is the 21st century AD, under the Gregorian calendar.
In mathematics
21 is:
* a composite number, its proper divisors being 1, 3 and 7, and a defici ...
3rd century BC
2nd century BC
1st century BC
3rd century
5th century
6th century
8th century
9th century
10th century
11th century
12th century
13th century
14th century
15th century
16th century
17th century
18th century
19th century
20th century
21st century
References
Bibliography
;in English
*
*
*
*
*
*
*
;in Portuguese
* . 1885?
*
*
External links
*
* {{cite web , url= https://www.metmuseum.org/toah/chronology/#?geo=eu, title= Iberian Peninsula , work= Heilbrunn Timeline of Art History , publisher=
Metropolitan Museum of Art
The Metropolitan Museum of Art of New York City, colloquially "the Met", is the largest art museum in the Americas. Its permanent collection contains over two million works, divided among 17 curatorial departments. The main building at 100 ...
, location=New York