1769 Transit of Venus observed from Tahiti search for the alleged southern continent. HMS Bark "Endeavour" was chosen to take the astronomers and other scientists to Tahiti. James Cook was commissioned as Lieutenant and appointed to command the vessel. Cook was the obvious choice as he was an outstanding seaman with navigational qualifications, a capable astronomer and had observed a 1766 annular eclipse in Newfoundland that was communicated to the Royal Society by John Bevis. Once the "Endeavour" arrived on the island, Cook decided to set up the Venus transit observatory on shore. He required a completely stable platform which the ship could not provide and plenty
Tahiti seemed little concerned with the affairs of the kingdom, and when in 1880 the governor Henri Isidore Chessé, supported by the Tahitian chiefs, pushed him to abdicate in favour of France, he accepted. On 29 June 1880, he ceded Tahiti to France along with the islands that were its dependencies. He was given the titular position of Officer of the Orders of the Legion of Honour and Agricultural Merit of France. Having become a colony, Tahiti thus lost all sovereignty. Tahiti was nevertheless a special colony, since all the subjects of the Kingdom of Pōmare would be given French citizenship.