There are four different blood types: type-O, type-A, type-B and type-AB. Type-O, the most common, is known as the universal donor because any person can receive a blood transfer of type-O blood. Type AB is known as the universal receiver because type-AB can receive a blood transfer of any type of blood.
Jean Baptiste Point du Sable, an immigrant from Saint-Domingue (now the Republic of Haiti), founded the first nonindigenous settlement in what is now Chicago, Illinois, the third largest city in the United States. The state of Illinois and city of Chicago declared du Sable the founder of Chicago on 26 October 1968.
Haitian Revolution. The Haitian Revolution (French: RÃ©volution haÃ¯tienne ) was a successful anti-slavery and anti-colonial insurrection by self-liberated slaves against French colonial rule in Saint-Domingue, now the sovereign nation of Haiti. It began in 1791 and ended in 1804 with the former colony's independence.