Pourquoi le buis devient jaune ?
En général, le buis est situé dans un sol trop humide ou très mal drainé. Lorsque le buis présente des feuilles au bord jauni, qui souvent arborent une teinte terne, c’est généralement dû à une carence en calcaire.
What do you know about web Du Bois?
- W.E.B. Du Bois was the first African American to receive a Ph.D. from Harvard University (1895). Did You Know? The first case study of an African American community was conducted by W.E.B. Du Bois, published as The Philadelphia Negro: A Social Study (1899). Did You Know? W.E.B. Du Bois co-founded the NAACP in 1909. Did You Know?
What is the significance of Du Bois's life?
- William Edward Burghardt Du Bois (1868–1963) believed that his life acquired its only deep significance through its participation in what he called “the Negro problem,” or, later, “the race problem.”
How did web Du Bois pay for his college education?
- Du Bois paid his way through three years at Harvard with money from summer jobs, an inheritance, scholarships, and loans from friends. In 1890, Harvard awarded Du Bois his second bachelor’s degree, cum laude, in history. In 1891, Du Bois received a scholarship to attend the sociology graduate school at Harvard.
What is William Du Bois's great-grandfather's ethnicity?
- William Du Bois’s paternal great-grandfather was James Du Bois of Poughkeepsie, New York, an ethnic French-American of Huguenot origin who fathered several children with slave women. One of James’ mixed-race sons was Alexander, who was born on Long Cay in the Bahamas in 1803; in 1810, he immigrated to the United States with his father.
