Transit Of Venus Across The Sun

7 December 1631 - 03:51 / 05:19 / 06:47 - Predicted by Kepler
4 December 1639 - 14:57 / 18:25 / 21:54 - First transit observed by Horrocks and Crabtree
6 June 1761 - 02:02 / 05:19 / 08:37 - Lomonosov, Chappe d'Auteroche and others observe from Russia
3–4 June 1769 - 19:15 3 June / 22:25 June 3 / 01:35 4 June - Cook sent to Tahiti to observe the transit