Human blood normally has a pH of about 7.4.Certain chemical reactions within your cells can lead to an increase in the amount of H+ ions.When these ions move into the blood,buffers take up some of them,preventing the blood from becoming acidic enough to endanger cell function.
Crispus Attucks, (born 1723?âdied March 5, 1770, Boston, Mass. [U.S.]) American hero, martyr of the Boston Massacre. Attucksâs life prior to the day of his death is still shrouded in mystery. Although nothing is known definitively about his ancestry, his father is thought to be Prince Yonger, a slave who was brought to America, while his mother is thought to be Nancy Attucks, a Natick Indian.
On March 5, 1858, black abolitionists gathered at Fanueil Hall for a celebration of the first Crispus Attucks Day.. Thirty years later, a monument was erected on Boston Common in honor of Crispus Attucks, the first to defy, the first to die.. Sources. The Black Presence in the Era of the American Revolution 1770-1800, by Sidney Kaplan (New York Graphic Society, 1973). The Boston Massacre, by Hiller Zobel (W.W. Norton, 1970).