Júlio César de Mello e Souza (
Rio de Janeiro
Rio de Janeiro, or simply Rio, is the capital of the Rio de Janeiro (state), state of Rio de Janeiro. It is the List of cities in Brazil by population, second-most-populous city in Brazil (after São Paulo) and the Largest cities in the America ...
, May 6, 1895 –
Recife
Recife ( , ) is the Federative units of Brazil, state capital of Pernambuco, Brazil, on the northeastern Atlantic Ocean, Atlantic coast of South America. It is the largest urban area within both the North Region, Brazil, North and the Northeast R ...
, June 18, 1974), was a Brazilian writer and
mathematics
Mathematics is a field of study that discovers and organizes methods, Mathematical theory, theories and theorems that are developed and Mathematical proof, proved for the needs of empirical sciences and mathematics itself. There are many ar ...
teacher. He was well known in Brazil and abroad for his books on
recreational mathematics
Recreational mathematics is mathematics carried out for recreation (entertainment) rather than as a strictly research-and-application-based professional activity or as a part of a student's formal education. Although it is not necessarily limited ...
, most of them published under the
pen name
A pen name or nom-de-plume is a pseudonym (or, in some cases, a variant form of a real name) adopted by an author and printed on the title page or by-line of their works in place of their real name.
A pen name may be used to make the author's na ...
s of
Malba Tahan and Breno de Alencar Bianco.
He wrote 69 novels and 51 books of mathematics and other subjects, with over than two million books sold by 1995. His most famous work, ''
The Man Who Counted'', saw its 54th printing in 2001.
Júlio César's most popular books, including ''The Man Who Counted'', are collections of mathematical problems, puzzles, curiosities, and embedded in tales inspired by the
Arabian Nights
''One Thousand and One Nights'' (, ), is a collection of Middle Eastern folktales compiled in the Arabic language during the Islamic Golden Age. It is often known in English as ''The Arabian Nights'', from the first English-language edition () ...
. He thoroughly researched his subject matters — not only the mathematics, but also the history, geography, and culture of the
Islamic Empire which was the backdrop and connecting thread of his books. Yet Júlio César's travels outside Brazil were limited to short visits to
Buenos Aires
Buenos Aires, controlled by the government of the Autonomous City of Buenos Aires, is the Capital city, capital and largest city of Argentina. It is located on the southwest of the Río de la Plata. Buenos Aires is classified as an Alpha− glob ...
,
Montevideo
Montevideo (, ; ) is the capital city, capital and List of cities in Uruguay, largest city of Uruguay. According to the 2023 census, the city proper has a population of 1,302,954 (about 37.2% of the country's total population) in an area of . M ...
, and
Lisbon
Lisbon ( ; ) is the capital and largest city of Portugal, with an estimated population of 567,131, as of 2023, within its administrative limits and 3,028,000 within the Lisbon Metropolitan Area, metropolis, as of 2025. Lisbon is mainlan ...
: he never set foot in the deserts and cities which he so vividly described in his books.
Júlio César was very critical of the educational methods used in Brazilian classrooms, especially for mathematics. "The mathematics teacher is a sadist," he claimed, "who loves to make everything as complicated as possible." In education, he was decades ahead of his time, and his proposals are still more praised than implemented today.
For his books, Júlio César received a prize by the prestigious
Brazilian Literary Academy and was made a member of the
Pernambuco Literary Academy. The Malba Tahan Institute was founded in 2004 at Queluz to preserve his legacy. The State Legislature of Rio de Janeiro determined his birthday, May 6, to be commemorated as the Mathematician's Day.
Early life
Júlio César was born in Rio de Janeiro but spent most of his childhood in
Queluz, a small rural town in the
State of São Paulo
State most commonly refers to:
* State (polity), a centralized political organization that regulates law and society within a territory
**Sovereign state, a sovereign polity in international law, commonly referred to as a country
**Nation state, a ...
. His father, João de Deus de Mello e Souza, was a civil servant with limited salary and eight (some reports say nine) children to support.
In 1905 he was sent with his older brother, João Batista, to
Rio de Janeiro
Rio de Janeiro, or simply Rio, is the capital of the Rio de Janeiro (state), state of Rio de Janeiro. It is the List of cities in Brazil by population, second-most-populous city in Brazil (after São Paulo) and the Largest cities in the America ...
to attend preparatory classes for admission to the prestigious Colégio Militar do Rio de Janeiro, where he studied from 1906 to 1909, and later at Colégio Pedro II.
As a student, Júlio César was not academically successful. In a 1905 letter to their parents, João Batista tells that little Júlio "is bad at writing, and a failure in mathematics". His grade reports at Colégio Pedro II show that he once failed an Algebra exam, and barely passed one on Arithmetic. He later attributed these results to the teaching practices of the time, based on "the detestable method of salivation".
However, he did show signs of his originality and non-conventional approaches in other ways. As a child in Queluz, he used to keep
frog
A frog is any member of a diverse and largely semiaquatic group of short-bodied, tailless amphibian vertebrates composing the order (biology), order Anura (coming from the Ancient Greek , literally 'without tail'). Frog species with rough ski ...
s as pets, and at one point he had some 50 animals in his yard. One of them, nicknamed "Monsignor", would follow him through the town. As an adult, he kept up with this hobby by assembling a large collection of frog statuettes.
His career as a writer began while he was still in high school, when one of his classmates offered him a brand-new pen and a
postage stamp
A postage stamp is a small piece of paper issued by a post office, postal administration, or other authorized vendors to customers who pay postage (the cost involved in moving, insuring, or registering mail). Then the stamp is affixed to the f ...
from
Chile
Chile, officially the Republic of Chile, is a country in western South America. It is the southernmost country in the world and the closest to Antarctica, stretching along a narrow strip of land between the Andes, Andes Mountains and the Paci ...
in exchange for an essay on the theme of "Hope", the homework for the next day. According to his memoirs, Júlio was called late at night by other anxious students, and by the next morning he had provided four different essays on "Hope", at 400
réis a piece. He kept on this activity for the rest of the year, writing on "Hate", "Nostalgia", and whatever else the teacher demanded.
Many years later he met his teacher, Silva Ramos, and told him of those dubious activities. When Silva Ramos introduced him jokingly to Raul Pederneiras as a "merchant of Hope and Hate", he got from the man prophetic advice: "Forget Hate and go on selling Hope. Take up this poetic profession, Merchant of Hope: since that business is profitable for the buyer, and even more so for the seller."
Career
Writing
Júlio began to write tales on his own while still in his teens but did not impress the critics in his family. His brother João Batista recalls that Júlio's tales were full of superfluous characters with bizarre names like "Mardukbarian" or "Protocholóski".
In 1918, at the age of 23, Júlio César presented five of his tales to the editor of the newspaper ''O Imparcial'', where he worked, but his boss did not even look at them. Undaunted, Júlio picked up the manuscripts and brought them back a few days later, this time pretending that they were translations of the work of a certain "R. S. Slade," supposedly the rage in
New York City
New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive w ...
. The first of those tales, ''The Jew's Revenge'', was published in the front page of the next issue of the newspaper; and the rest followed suit.
This experience convinced Júlio to assume a "foreign" pen name. He chose an Arabian identity — because, as he declared in an interview, the Arabs were unsurpassed in the art of storytelling. For the next seven years he prepared himself by studying Arabic and reading all he could on Islamic culture. In 1925, he sold the idea of a series of tales on Oriental themes to Irineu Marinho, editor of the newspaper ''A Noite'' (which would later become a huge Brazilian media conglomerate, the
Organizações Globo
Grupo Globo (), formerly and still legally known as Organizações Globo (), is a Brazilian private entertainment and mass media conglomerate based in Rio de Janeiro, Brazil. Founded in 1925 by Irineu Marinho, it is the largest media group i ...
). His stories, published in the column ''Contos de Malba Tahan'' ("Tales of Malba Tahan"), were attributed to a fictitious Arabian scholar of that name, and ostensibly translated by an equally fictitious "Professor
Breno Alencar Bianco".
Whether for the catchy pseudonym, or (more likely) for the author's lively style and imagination, his books were a resounding success, and he became a national celebrity. Even though his identity soon was known to everybody, he continued to use the name of Malba Tahan in his public life. He had a rubber stamp made with that name in Arabic script, which he used when grading his student's homework; and, in 1952 — by special permission of Brazilian President
Getúlio Vargas
Getúlio Dornelles Vargas (; ; 19 April 1882 – 24 August 1954) was a Brazilian lawyer and politician who served as the 14th and 17th president of Brazil, from 1930 to 1945 and from 1951 until his suicide in 1954. Due to his long and contr ...
— he added "Malba Tahan" to his own legal name.
[Sergio Lorenzato]
UMA ESPECIAL PÁGINA DA EDUCAÇÃO MATEMÁTICA BRASILEIRA
(in Portuguese)
Teaching
Before becoming a teacher, he worked for a time as general assistant at the National Library.
Júlio César graduated as an elementary schoolteacher at the Escola Normal do Distrito Federal in Rio de Janeiro, and as a
civil engineer
A civil engineer is a person who practices civil engineering – the application of planning, designing, constructing, maintaining, and operating infrastructure while protecting the public and environmental health, as well as improving existing i ...
at the
Escola Politécnica in 1913. He started lecturing as a substitute teacher at the Colégio Pedro II, and later became a teacher at the Escola Normal.
He began teaching
history
History is the systematic study of the past, focusing primarily on the Human history, human past. As an academic discipline, it analyses and interprets evidence to construct narratives about what happened and explain why it happened. Some t ...
,
geography
Geography (from Ancient Greek ; combining 'Earth' and 'write', literally 'Earth writing') is the study of the lands, features, inhabitants, and phenomena of Earth. Geography is an all-encompassing discipline that seeks an understanding o ...
and
physics
Physics is the scientific study of matter, its Elementary particle, 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 whi ...
, and only later moved to
mathematics
Mathematics is a field of study that discovers and organizes methods, Mathematical theory, theories and theorems that are developed and Mathematical proof, proved for the needs of empirical sciences and mathematics itself. There are many ar ...
.
In time he became Chair at the Colégio Pedro II, at the Instituto de Educação, at the teacher's school of the
Universidade do Brasil
The Federal University of Rio de Janeiro (, UFRJ) is a public research university
A research university or a research-intensive university is a university that is committed to research as a central part of its mission. They are "the key sites ...
(which would become the
Federal University of Rio de Janeiro
The Federal University of Rio de Janeiro (, UFRJ) is a public university, public research university in Rio de Janeiro, Brazil. It is the largest federal university in the country and is one of the Brazilian centers of excellence in teaching and r ...
) and at the National School of Education, where he got the title of Professor Emeritus.
Besides his classes at the teacher's school, he delivered over 2000 lectures on the teaching of mathematics and wrote many books on the subject. In all his works Júlio defended the use of games as teaching aids, and the replacement of chalk-and-blackboard lectures by "mathematics laboratories" where students could engage in creative activities, self-study, and object manipulation — a proposal that was seen as heretical at the time.
In the Brazilian 0-to-10 grading system, Júlio would never give a zero grade. "Why give a zero, when there are so many numbers to choose from?" he used to say. He would give the brightest students the task of teaching the weaker ones: "by the end of the first semester, they would all be above the pass line." he claimed.
While his methods and style charmed all his students, he had the opposition of many of his colleagues, who found his approach of connecting mathematics to everyday life as demeaning.
Julio César also spread his message through radio programmes of several stations in Rio de Janeiro, including the
Rádio Nacional, Radio Clube, and Rádio Mayrink Veiga, as well as in
television
Television (TV) is a telecommunication medium for transmitting moving images and sound. Additionally, the term can refer to a physical television set rather than the medium of transmission. Television is a mass medium for advertising, ...
, at the
TV Tupi of Rio and the
TV Cultura
TV Cultura, or simply Cultura, is a free Brazilian non-commercial public television network headquartered in São Paulo and a part of Father Anchieta Foundation, a non-profit foundation funded by the São Paulo State Government. It focuses on ...
of São Paulo.
Júlio César's last public lecture was delivered in
Recife
Recife ( , ) is the Federative units of Brazil, state capital of Pernambuco, Brazil, on the northeastern Atlantic Ocean, Atlantic coast of South America. It is the largest urban area within both the North Region, Brazil, North and the Northeast R ...
, at the age of 79, to an audience of future teachers. It was about the art of storytelling. Back to his hotel room he apparently suffered a
heart attack
A myocardial infarction (MI), commonly known as a heart attack, occurs when Ischemia, blood flow decreases or stops in one of the coronary arteries of the heart, causing infarction (tissue death) to the heart muscle. The most common symptom ...
and expired.
He had left instructions for his funeral. He did not want people to wear black: quoting a song by
Noel Rosa, he explained that "Black clothes are vanities/of those who enjoy fancy dress;/I only wish for your memories/and memories are colorless".
Other activities
Júlio was an energetic campaigner for the cause of the
Hanseniacs (lepers), who had historically been banned and confined in
leper colonies
A leper colony, also known by many other names, is an isolated community for the quarantining and treatment of lepers, people suffering from leprosy.
'' M. leprae'', the bacterium responsible for leprosy, is believed to have spread from East ...
. For over 10 years he edited the magazine ''
Damião'', which preached the end of the prejudice and re-incorporation of former inmates into the society. In his
testament
A testament is a document that the author has sworn to be true. In law it usually means last will and testament.
Testament or The Testament can also refer to:
Books
* ''Testament'' (comic book), a 2005 comic book
* ''Testament'', a thriller no ...
, he left a message to the Hanseniacs, to be read at his funeral.
Books
*''Aventuras do Rei Baribê'', "Adventures of King Baribê"
*''A Caixa do Futuro'', "The Box of the Future."
*''Céu de Alá'', "Allah's Heaven"
*''A Sombra do Arco-Íris, "The Rainbow's Shadow" (the author's favorite)
*''
O Homem que Calculava'', "The Man Who Counted", 224p. (1938)
*''Lendas do Céu e da Terra'', "Legends of Heaven and Earth"
*''Lendas do Deserto'', "Legends of the Desert"
*''Lendas do Oásis'', "Legends of the Oasis"
*''Lendas do Povo de Deus'', "Legends of God's People"
*''Maktub!'', "It is Written!"
*''Matemática Divertida e Curiosa'', "Enjoyable and Curious Mathematics", 158p., .
*''Os Melhores Contos'', "The Best Tales"
*''Meu Anel de Sete Pedras'', "My Ring of Seven Stones"
*''Mil Histórias Sem Fim'', "A Thousand Unending Tales" (2 volumes)
*''Minha Vida Querida'', "My Dear Life"
*''Novas Lendas Orientais'', "New Oriental Legends"
*''Salim, o Mágico'', "Salim, the Magician"
*''Acordaram-me de Madrugada'', "They Woke Me Up In the Middle of the Night" (memoirs).
References
* Luiza Villamea, article in ''Revista Nova Escola'', September 1995.
* João Batista de Mello e Souza, ''Os Meninos de Queluz'' – "The Boys from Queluz".
External links
A Biographyin English by Andréa Estevão, at the Brazil-Arab News Agency.
* (in Portuguese).
(in Portuguese).
And another (in Portuguese).
{{DEFAULTSORT:Mello e Souza, Julio Cesar
1895 births
1974 deaths
Brazilian male writers
Brazilian mathematicians
Recreational mathematicians
Mathematics popularizers
Academic staff of the Federal University of Rio de Janeiro