Background: King George VI of the United Kingdom had suffered from serious health problems, and his daughter, Princess Elizabeth, had been gradually preparing to take
Background Apartheid, a legalized system of racial segregation, had been enforced in South Africa since 1948, denying basic rights to the country’s Black majority. Nelson
Background Following the American Revolution, the newly independent United States faced the challenge of forming a stable government. The Articles of Confederation, the nation’s first
Background The Space Shuttle Challenger was set to launch Mission STS-51-L, a historic flight that included Christa McAuliffe, a teacher from New Hampshire selected for