1940年7月10日，不列颠空战爆发，德国空军开始袭击英国南部 [1]。同年这一天还见证了其他重要时刻：1509年约翰·加尔文出生；1890年怀俄明州成为美国第44个州；1925年田纳西州代顿市启动斯科普斯审判的陪审团遴选工作；1962年美国国家航空航天局发射了首颗有源通信卫星Telstar 1 [1]。
进入1991年，鲍里斯·叶利钦于7月10日宣誓就任俄罗斯共和国首任民选总统 [1]。
On July 10, 1940, the Battle of Britain commenced as German air forces began attacking southern England [1]. This date also marks several other significant historical milestones. John Calvin was born on this day in 1509 during a period marked by key developments in the Protestant Reformation [1]. In 1890, Wyoming became the 44th state of the United States [1]. Decades later, jury selection for the Scopes Trial began in Dayton, Tennessee, in 1925 [1]. On July 10, 1962, NASA launched Telstar 1, its first active communications satellite [1]. Most recently on this date in 1991, Boris Yeltsin took his oath of office as the first democratically elected president of Russia [1].