Smithsonian Institute
Jul 1 US President Andrew Jackson announces to Congress bequest by James Smithson of 100,000 gold sovereigns to found Smithsonian Institution in Washington
- Jul 4 Wisconsin Territory forms
Darwin at Saint Helena
Jul 8 Charles Darwin reaches Saint Helena in HMS Beagle and takes up lodgings near the tomb of Napoleon
- Jul 13 US patent #1 (after 9,957 unnumbered patents), for locomotive wheels
- Jul 19 HMS Beagle with Charles Darwin arrives in Ascension Island
- Jul 21 1st Canadian RR opens, between Laprairie and St John, Quebec
- Jul 27 The ship the "Duke of York" arrives with the first colonists at Nepean Bay, Kangaroo Island, South Australia
- Jul 29 Inauguration of the Arc de Triomphe in Paris
- Jul 30 First English language newspaper published in Hawaii