◆ On this day

July 28

3 sourced moments from July 28 in history: Austria-Hungary declared war on Serbia, lighting the fuse of World War I (1914); The SR-71's speed record has stood since 1976; and The Tangshan earthquake became one of history's deadliest disasters (1976).

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3 things happened on July 28

newest first ↓

1976 Technology · Transportation

The SR-71's speed record has stood since 1976

No air-breathing aircraft with a crew has ever flown faster than this Cold War spy plane.

1976 Earth & Climate · Natural Disasters

The Tangshan earthquake became one of history's deadliest disasters

A pre-dawn quake leveled a Chinese industrial city in seconds, killing on a scale the world still struggles to count.

1914 History · War & Conflict

Austria-Hungary declared war on Serbia, lighting the fuse of World War I

One month after an assassin's bullet in Sarajevo, an empire's declaration of war set Europe's alliances tumbling like dominoes.