Endeavour first flew in May 1992
its last mission was in May 2011
The United States Congress authorized the construction of Endeavour in 1987 to replace Challenger.
The orbiter is named after the British HMS Endeavour, the ship which took Captain James Cook on his first voyage of discovery (1768–1771). This is why the name is spelled in the British English manner, rather than the American English ("Endeavor").
Endeavour's retirement home will be the California Science Center in Los Angeles.