Documents whose date range includes April 1818April 1, 1818April 3, 1818April 4, 1818April 5, 1818April 6, 1818April 7, 1818April 8, 1818April 9, 1818April 10, 1818April 11, 1818April 12, 1818April 13, 1818April 14, 1818April 17, 1818April 18, 1818April 19, 1818April 20, 1818April 21, 1818April 22, 1818April 23, 1818April 25, 1818April 28, 1818April 29, 1818April 30, 1818 