1769 Transit of Venus observed from Tahiti while voyaging to (unsuccessfully) observe the 1761 Transit in Sumatra. Using the solar parallax values obtained from the 1769 transit, Hornsby wrote in "Philosophical Transitions" December 1771 that "the mean distance from the Earth to the Sun (is) 93,726,900 English miles." The radar-based value used today for the astronomical unit is . This is only a difference of eight-tenths of one percent. Considering what these astronomers had to work with, their results were "absolutely remarkable". 1769 Transit of Venus observed from Tahiti On June 3, 1769, British navigator Captain James Cook, British naturalist Joseph Banks, British astronomer Charles Green and
Tahiti island. In 1819, Pōmare II, encouraged by the missionaries, introduced the first Tahitian legal code, known under the name of the Pōmare Legal Code, which consists of nineteen laws. The missionaries and Pōmare II thus imposed a ban on nudity (obliging them to wear clothes covering their whole body), banned dances and chants, described as immodest, tattoos and costumes made of flowers. In the 1820s, the entire population of Tahiti converted to Protestantism. Duperrey, who berthed in Tahiti in May 1823, attests to the change in Tahitian society in a letter dated 15 May 1823: "The missionaries of the Royal