This Day in History July 23: The July Crisis, Egypt’s Revolution & The Dawn of Sound Film
Event Category Key Historical Details Most Significant Event Austria-Hungary issues the July Ultimatum to Serbia (1914), setting off World War I Top 10 Key Events Pope John V elected (685) • Typographer patented by William Austin Burt (1829) • July Ultimatum issued to Serbia (1914) • Chinese Communist Party founded (1921) • Fox acquires Movietone…