The Hundred Days, is the period between
Napoleon Bonaparte's return from
Paris on 20 March 1815 and the second restoration of King
Louis XVIII on 8 July 1815 (a period of 111 days). This period is also known as the War of the Seventh Coalition, and includes the Waterloo Campaign and the Neapolitan War.
Baines, Edward, History of the Wars of the French Revolution, from the breaking out of the wars in 1792, to, the restoration of general peace in 1815, volume II (of II), Longman, Rees, Orme and Brown, 1818