Problem: John Winston Ono Lennon (9 October 1940 - 8 December 1980) was an English singer, songwriter, and peace activist who co-founded the Beatles, the most commercially successful band in the history of popular music. He and fellow member Paul McCartney formed a much-celebrated songwriting partnership. Along with George Harrison and Ringo Starr, the group would ascend to world-wide fame during the 1960s.

During his marriage to Cynthia, Lennon's first son Julian was born at the same time that his commitments with the Beatles were intensifying at the height of Beatlemania. Lennon was touring with the Beatles when Julian was born on 8 April 1963. Julian's birth, like his mother Cynthia's marriage to Lennon, was kept secret because Epstein was convinced that public knowledge of such things would threaten the Beatles' commercial success. Julian recalled that as a small child in Weybridge some four years later, "I was trundled home from school and came walking up with one of my watercolour paintings. It was just a bunch of stars and this blonde girl I knew at school. And Dad said, 'What's this?' I said, 'It's Lucy in the sky with diamonds.'" Lennon used it as the title of a Beatles song, and though it was later reported to have been derived from the initials LSD, Lennon insisted, "It's not an acid song." McCartney corroborated Lennon's explanation that Julian innocently came up with the name. Lennon was distant from Julian, who felt closer to McCartney than to his father. During a car journey to visit Cynthia and Julian during Lennon's divorce, McCartney composed a song, "Hey Jules", to comfort him. It would evolve into the Beatles song "Hey Jude". Lennon later said, "That's his best song. It started off as a song about my son Julian ... he turned it into 'Hey Jude'. I always thought it was about me and Yoko but he said it wasn't." Lennon's relationship with Julian was already strained, and after Lennon and Ono moved to Manhattan in 1971, Julian would not see his father again until 1973. With Pang's encouragement, arrangements were made for Julian (and his mother) to visit Lennon in Los Angeles, where they went to Disneyland. Julian started to see his father regularly, and Lennon gave him a drumming part on a Walls and Bridges track. He bought Julian a Gibson Les Paul guitar and other instruments, and encouraged his interest in music by demonstrating guitar chord techniques. Julian recalls that he and his father "got on a great deal better" during the time he spent in New York: "We had a lot of fun, laughed a lot and had a great time in general." In a Playboy interview with David Sheff shortly before his death, Lennon said, "Sean was a planned child, and therein lies the difference. I don't love Julian any less as a child. He's still my son, whether he came from a bottle of whiskey or because they didn't have pills in those days. He's here, he belongs to me, and he always will." He said he was trying to re-establish a connection with the then 17-year-old, and confidently predicted, "Julian and I will have a relationship in the future." After his death it was revealed that he had left Julian very little in his will.

when was he born?

Answer with quotes: Julian was born on 8 April 1963.

Problem: Simone Lucie Ernestine Marie Bertrand de Beauvoir ( or ; French pronunciation: [simon d@ bovwaR] ( listen); 9 January 1908 - 14 April 1986) was a French writer, intellectual, existentialist philosopher, political activist, feminist and social theorist. Though she did not consider herself a philosopher, she had a significant influence on both feminist existentialism and feminist theory. De Beauvoir wrote novels, essays, biographies, autobiography and monographs on philosophy, politics and social issues. She was known for her 1949 treatise The Second Sex, a detailed analysis of women's oppression and a foundational tract of contemporary feminism; and for her novels, including She Came to Stay and The Mandarins.

De Beauvoir was intellectually precocious, fuelled by her father's encouragement; he reportedly would boast, "Simone thinks like a man!" Because of her family's straitened circumstances, de Beauvoir could no longer rely on her dowry, and like other middle-class girls of her age, her marriage opportunities were put at risk. De Beauvoir took this opportunity to do what she always wanted to do while also taking steps to earn a living for herself. After passing baccalaureate exams in mathematics and philosophy in 1925, she studied mathematics at the Institut Catholique de Paris and literature/languages at the Institut Sainte-Marie. She then studied philosophy at the Sorbonne and after completing her degree in 1928, she wrote her diplome d'etudes superieures (roughly equivalent to an MA thesis) on Leibniz for Leon Brunschvicg (the topic was "Le concept chez Leibniz" ["The Concept in Leibniz"]). De Beauvoir was only the ninth woman to have received a degree from the Sorbonne at the time, due to the fact that French women had only recently been allowed to join higher education. De Beauvoir first worked with Maurice Merleau-Ponty and Claude Levi-Strauss, when all three completed their practice teaching requirements at the same secondary school. Although not officially enrolled, she sat in on courses at the Ecole Normale Superieure in preparation for the agregation in philosophy, a highly competitive postgraduate examination which serves as a national ranking of students. It was while studying for the agregation that she met Ecole Normale students Jean-Paul Sartre, Paul Nizan, and Rene Maheu (who gave her the lasting nickname "Castor", or beaver). The jury for the agregation narrowly awarded Sartre first place instead of de Beauvoir, who placed second and, at age 21, was the youngest person ever to pass the exam. Writing of her youth in Memoirs of a Dutiful Daughter she said: "...my father's individualism and pagan ethical standards were in complete contrast to the rigidly moral conventionalism of my mother's teaching. This disequilibrium, which made my life a kind of endless disputation, is the main reason why I became an intellectual."

What did she write it on?

Answer with quotes:
Leibniz for Leon Brunschvicg