Fearing for her life, Martha, at the urging of relatives, decided to free her deceased husbandâs slaves immediately. On January 1, 1801, a bit more than a year after Georgeâs death, Washingtonâs slaves gained their liberty.
The Hundred Years' War was a time of rapid military evolution. Weapons, tactics, army structure and the social meaning of war all changed, partly in response to the war's costs, partly through advancement in technology and partly through lessons that warfare taught.efore the Hundred Years' War, heavy cavalry (knights) was considered the most powerful unit in an army, but by the war's end, this belief had shifted. The heavy horse was increasingly negated by the use of the longbow (and, later, another long-distance weapon: firearms).
The Thirty Years' War was one of the longest and most destructive conflicts, as well as the deadliest European religious war in history. It took place in Central Europe between 1618 and 1648 and resulted in eight million casualties.