Most 18th-century visitors to these isles overlooked the tell-tale signs of former Polynesian settlement. This is true of Captain Cook, who landed on Kiritimati in 1777, and Captain Fanning during his visits to Teraina and Tabuaeran in 1798. Archaeologists have since identified remains of coral marae platforms and/or village complexes on all three, as well as on Malden, Millennium Atoll and Flint Island. These remains are dateable as far back as the 14th century, and show that the inhabitants of the Line Islands were more than just castaways. Whaling ships were regular visitors to the islands in the 19th century, in search of water, wood and provisions. The first recorded visit was by the whaler Coquette to Christmas Island in 1822. The islands of Fanning and Washington were annexed as part of the British Colony of the Gilbert and Ellice Islands in 1916, followed in 1919 by the similar annexation of Christmas Island. However, these annexations were contested by the government of the United States, citing its Guano Islands Act of 1856, which allowed for very wide-ranging territorial claims. The latter claims persisted until relinquished under the Treaty of Tarawa, which recognised Kiribati's sovereignty over the majority of the Line Islands chain. In the meantime, the Line Islands featured briefly in biennial reports furnished by the Colony's resident commissioner to the Colonial Office and Parliament in London. The group is geographically divided into three subgroups; The Northern, Central, and Southern Line Islands. The Central Line Islands are sometimes grouped with the Southern Line Islands. The table below lists the islands from North to South.
List of atolls, islands and reefs
* The lagoon areas marked with an asterisk are contained within the island areas of the previous column because they are, unlike in the case of a typical atoll, inland waters completely sealed off from the sea. Kiritimati is the largest atoll in the world in terms of land area. The islands were annexed by the UK in 1888 with a view to laying the Pacific cable, with Tabuaeran as a relay station. The cable was laid and was operational between 1902 and 1963 except for a short period in 1914. Copra and "Petfish" are the main export products.
On December 23, 1994, the Republic of Kiribati announced a change of time zone for the Line Islands, to take effect December 31, 1994. This adjustment effectively moved the International Date Line over to the east within Kiribati, placing all of Kiribati on the Asian or western side of the date line, despite the fact that Caroline's longitude of 150 degrees west corresponds to UTC−10 rather than its official time zone of UTC+14. Caroline Island now is at the same time as the Hawaiian Islands, but one day ahead. This move made Caroline Island both the easternmost land in the earliest time zone, and one of the first points of land which would see sunrise on January 1, 2000 — at 5:43 a.m., as measured by local time. The stated reason for the move was a campaign promise of Kiribati President Teburoro Tito to eliminate the confusion of Kiribati straddling the Date Line and therefore being constantly in two different days. However, Kiribati officials were not reluctant to attempt to capitalize on the nation's new status as owners of the first land to see sunrise in 2000. Other Pacific nations, including Tonga and New Zealand'sChatham Islands, protested the move, objecting that it infringed on their claims to be the first land to see dawn in the year 2000. In 1999, in order to further capitalize upon the massive public interest in celebrations marking the arrival of the year 2000, Caroline Island was officially renamed Millennium Island. Although uninhabited, a special celebration was held on the island, featuring performances by Kiribati native entertainers and attended by Kiribati president Tito. Over 70 Kiribati singers and dancers traveled to Caroline from the capital Tarawa, accompanied by approximately 25 journalists. The celebration, broadcast by satellite worldwide, had an estimated audience of up to one billion viewers.