- Jun 4 First baseball-type game in Canada played at Beachville, Upper Canada
- Jun 10 Myall Creek Massacre in Australia: 28 Aboriginal Australians are murdered
- Jun 12 Hopkins Observatory, dedicated in Williamstown, Massachusetts
- Jun 12 Iowa Territory forms with Burlington as its capital
Coronation of Queen Victoria
Jun 28 Coronation of Queen Victoria, aged 19, during a five-hour ceremony at Westminster Abbey, London [1]
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