1820:
January 29: George IV becomes King of England upon the death of George III
February 15: Birth of Susan B. Anthony
March: Missouri Compromise becomes law in the United States
May 12: Birth of Florence Nightingale
September 26: Death of Daniel Boone
James Monroe reelected as US president
1821:
March 4: James Monroe sworn in for second term as US president
May 5: Death of Napoleon Bonaparte on isle of St. Helena
July 10: US takes possession of Florida, which it purchased from Spain
1822:
Charles Babbage designs the “difference engine,” an early computing machine
Hieroglyphs deciphered using the Rosetta Stone
Freed slaves arrive in Liberia and found town of Monrovia
1823:
April 3: Birth of William Marcy “Boss” Tweed, New York City political boss
December: Monroe Doctrine declared in President Monroe’s annual report to the US Congress
1824:
US government creates Bureau of Indian Affairs
US presidential election ends in deadlock as none of the three major candidates can claim a majority in the electoral college
1825:
February: John Quincy Adams becomes US president when deadlocked election is settled in the House of Representatives
March 4: John Quincy Adams sworn in as US president
October 26: Opening of the Erie Canal along its full length from Buffalo to Albany, New York
Panic of 1825 in London: considered first modern stock market crash
1826:
January 30: Opening of Menai Suspension Bridge in Wales, ushered in age of great bridges
July 4: Birth of American songwriter Stephen Foster
July 4: Death of John Adams in Massachusetts and Thomas Jefferson in Virginia, on the 50th anniversary of the singing of the Declaration of Independence
1827:
March 26: Death of Ludwig van Beethoven
August 12: Death of English poet and artist William Blake
1828:
February 8: Birth of writer Jules Verne
September 9: Birth of Russian author Leo Tolstoy
Andrew Jackson elected president of the United States
1829:
March 4: Andrew Jackson sworn in as US president
Religious freedom increased in Ireland, thanks to Catholic Emancipation movement of Daniel O’Connell
Metropolitan police force formed in London
June 27: Death of British scientist James Smithson, who willed his fortune to the US government and thus funds the Smithsonian Institution
