Major Events Feb 10 Edmond Halley appointed as the second Astronomer Royal at the Greenwich Observatory May 25 The Ship "Le Grand St Antoine" reaches Marseille, bringing Europe's last major plague outbreak. Kills around 100,000. More 1720 Events Did You Know? Mrs Clements of England markets first paste-style mustard June 10, 1720 Born in 1720 Bonnie Prince CharlieDecember 20 More People Born in 1720 Who Died in 1720 Calico JackNovember 17 More 1720 Deaths 1719 History by Year 1721 Famous People in 1720 Antonio VivaldiViolin Virtuoso and Composer Daniel DefoeNovelist Johann Sebastian BachComposer World Leaders in 1720 George I Peter the Great