List of Famous people born on June 13rd

Hugo Salmela was one of the Red Guard military leaders in the 1918 Finnish Civil War. He was a saw-mill worker from the town of Kotka in Eastern Finland, without any military background. Salmela was also known as an enthusiastic amateur actor in the local worker's theatre. After the Red Guards were formed in the late 1917, Salmela became the leader of the Kymi Guard.

Jacques Rougeot was a French literary critic and political activist.

Alessandro Piccolomini was an Italian humanist, astronomer and philosopher from Siena, who promoted the popularization in the vernacular of Latin and Greek scientific and philosophical treatises. His early works include Il Dialogo della bella creanza delle donne, o Raffaella (1539) and the comedies Amor costante, and Alessandro, which were sponsored and produced by the Sienese Accademia degl'Intronati, of which he was a member and an official. Much of his literary production consisted of translations from the Classics, of which Book xiii of Ovid's Metamorphoses and book vi of the Aeneid are early examples. In 1540, while a student at the University of Padua, he helped found the Infiammati Academy, in which he gave lectures in philosophy. His poetry, in which he followed the Petrarchan tradition, appeared first in various contemporary collections, and in 1549 he published as a single volume one hundred sonnets titled Cento sonetti. Later in life, he established in his sister-in-law's Villa of Poggiarello of Stigliano, near Siena, where he attended the revision of his previous essays, and where he wrote all his late works, as the translation of Aristotle's Poetics on which he wrote a learned commentary issued in 1575. His interest in Aristotle included the publication of a paraphrase of Aristotle's Rhetoric with commentary. In his Trattato della grandezza della terra e dell' acqua (1558), he opposed the Aristotelean and Ptolemaic opinion that water was more extensive than land.

William Sealy Gosset was an English statistician, chemist and brewer who served as Head Brewer of Guinness and Head Experimental Brewer of Guinness and was a pioneer of modern statistics. He pioneered small sample experimental design and analysis with an economic approach to the logic of uncertainty. Gosset published under the pen name Student and developed most famously Student's t-distribution – originally called Student's "z" – and "Student's test of statistical significance".