Gilbert and Ellice Islands, former British colony, west-central Pacific Ocean. The colony consisted of the Gilbert Islands, Tuvalu (formerly Ellice Islands), the northern Line Islands, and the Phoenix Islands. First visited by Europeans by the early 19th century, the group was proclaimed a British protectorate in 1892 and made a crown colony in 1916. In 1979 the colony was divided and formed parts of independent Kiribati and Tuvalu.