Births on June 21

Sidney Smith, English admiral and politician (d. 1840)

Admiral Sir William Sidney Smith (21 June 1764 – 26 May 1840) was a British naval and intelligence officer. Serving in the American and French revolutionary wars and Napoleonic Wars, he rose to the rank of Admiral.

Smith was known for his offending character and penchant for acting on his own initiative, which caused a great deal of friction with many of his superiors and colleagues. His personal intelligence and enterprise led to his involvement in a variety of tasks which involved diplomacy and espionage. He became a hero in Britain for leading the successful defence of Acre in 1799, thwarting Napoleon's plans of further conquest in the Sinai.

Napoleon Bonaparte, reminiscing later in his life, said of him: "That man made me miss my destiny".