    Ð°Ð½ Obstetrician is a physician who has successfully completed specialized education and training in the management of pregnancy, labor, and the puerperium (the t â¦ ime-period directly following childbirth).n Obstetrician specializes in the care and treatment of pregnant women during their pregnancy, labor, delivery and the postpartum period.
Animal skins were used as sails for the earliest boats and rafts. The Egyptians and other ancient people wove reeds together in mats to make sails, but the Egyptians were also the first to make cloth sails as early as 3300 B.C. Great sailors of the Mediterranean region like the Phoenicians sailed under cloth sails.
1619: Twenty Africans are transported to Jamestown. They were imported to work as slaves in Great Britain's American colonies. 1626: The Dutch West India Company brings eleven African-American men to the New Netherlands. 1636: Desire, the first carrier in the United States to participate in human trade. The ship is built and first sails from Massachusetts. This marks the beginning of colonial North America's participation in the Trans Atlantic Slave Trade. 1640: John Punch becomes the first documented slave to receive servitude for life. An African servant, John Punch, is sentenced to life after running away.