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Cook's first voyage (1768-1771)

The Transit of Venus is one of the rarest predictable astronomical phenomena, occurring twice in eight years and then not again for over one hundred years (in a 243-year cycle). Observing the time it takes for Venus to transit across the sun can help to calculate the size of the solar system and the distance from the Earth to the Sun. In 1761, scientific societies sought to record the Transit from posts around the world. However, many of the observations were flawed or thwarted by the weather, especially those arranged, in haste, by the Royal Society of London. Determined to not repeat the same mistake, the Royal Society planned a South Sea voyage to view the 1769 Transit in concert with the Royal Navy, as the southern Pacific would be one of the places where the Transit was visible.

The Admiralty chose Lieutenant James Cook to command the expedition, based on his aptitude for charting and instrumentation.  He was joined by Joseph Banks, a wealthy young botanist, and his retinue of scientists and artists. In addition to observing the Transit, Cook was secretly instructed to seek out and claim any potentially-useful territory or resources that his ship, Endeavour, came across.

Cook and his crew sailed from Plymouth on August 25, 1768. It sailed south, to Tierra del Fuego, and then to its destination for the Transit: Tahiti. There, three groups observed the Transit, although their results were imprecise. When the Endeavour left Tahiti in July 1769; on board was a new member of the party, the Rai’aitean priest and navigator Tupaia, along with his servant, Taiato.

The ship headed south, arriving in New Zealand in early October. There, Tupaia found that he could understand and speak with the local people, the Māori. However, this did not prevent several violent incidents that resulted in deaths. While charting the coastline, Cook and the voyage astronomer, Charles Green, observed the Transit of Mercury. The ship sailed round the southern tip of the South Island, proving it was not connected to a southern continent.

Next, the Endeavour set out east, encountering the east coast of Australia in April 1770. They were the first Europeans to do so. After stopping at a place they called Botany Bay, the ship turned north, skirting the coast. Endeavour ran aground on the Great Barrier Reef; while the ship was saved, they had to stop for repairs at Waalumbaal Birri, or Endeavour River. Here, the Europeans saw their first kangaroo and learned its name from the local people, the Guugu Yimithirr. They nearly ran aground again, but narrowly averted disaster and made for Jakarta, then known as Batavia.

In Batavia, many members of the crew became ill. More than two dozen men, including Sydney Parkinson, the voyage artist, the aforementioned Charles Green, and Tupaia, died in Jakarta or at sea soon thereafter. Weakened, the Endeavour called at the Cape of Good Hope and returned to the Thames in July 1771.   

Cook's second voyage (1772-1775)

Cook’s first voyage was considered a success. The Admiralty chose to send him to the Pacific again, this time to focus on finding and charting Terra Australia incognita, if it existed. This time, Cook was in command of the Resolution and accompanied by the Adventure, captained by Tobias Furneaux.

The ships departed Plymouth on July 13, 1772. They made for the Cape of Good Hope and then sailed south, in search of land. They reached an ice sheet and could not find a break to sail through. The crew melted ice for fresh water and the expedition artist, William Hodges, drew eerie pictures of looming icebergs. On January 17, 1773, the ships crossed the Antarctic Circle, the first ships known to have done so.

Separated in fog, the ships headed toward New Zealand. They rendezvoused in Queen Charlotte Sound, where they traded with the Māori. The Māori inquired as to location of Tupaia and were sad to hear that he had died.

The ships returned to Tahiti, where they found the politics of the island had shifted and there was a new leader, Tu, to consult. Mai, a Rai’atean man, joined the Adventure, while Hitihiti joined the Resolution.  The former became the first Polynesian to visit Britain, while Hitihiti returned home after sailing to Tonga, the Antarctic, New Zealand, and Easter Island.

Cook and his men next sailed to Tonga and then back to New Zealand. En route, the ships were separated again. Resolution left for southern waters without Adventure; Furneaux decided to return to Britain, leaving Cook in the Antarctic.

In December 1773 and January 1774, Resolution crossed the Antarctic Circle for the second and third times. They reached 71°10’ South, the farthest south any ships had sailed; the record would stand until 1823. He had decidedly proven that the great southern continent was nothing more than a myth.

Returning north, Cook called at Rapa Nui, or Easter Island, and his men marveled at the Moai, large statues that stand guard on the island. The Resolution returned to Tahiti, and then called at Niue, Nomuka, Vanuatu, New Caledonia, and Norfolk Island. After another visit to New Zealand, they sailed east to Tierra del Fuego. In the Atlantic, Cook named South Georgia and the South Sandwich Islands. On the homeward stretch, Resolution visited St. Helena and then anchored in Portsmouth on July 30, 1775.