The church was formed in 1968 by merging the efforts of the
London Missionary Society (operating exclusively in Papua), the relatively marginal
Presbyterian church (largely confined to
Port Moresby itself) and the
Methodist mission (largely operating in
New Guinea and nearby islands, the western and northern
Solomons and the islands of eastern
Papua). On 23 March 1969, Rev.
Leslie Boseto became the first Solomon Islands Bishop at a ceremony at Gizo; Rev. Jack Sharp was the denomination’s Moderator. By 1970, the church was running several primary schools, a high school and a hospital. The formation of the United Church pre-dates the merger of its corresponding (and one missionary parent though Methodists from
New Zealand) denominations in
Australia in 1977 in the
Uniting Church in Australia but such cross-denominational mergers were common throughout the 20th century, particularly in Commonwealth countries: for example; the United Church of Northern India (1924) (now merged in the later and wider
Church of North India,
Church of Pakistan, and
Church of Bangladesh); the
United Church of Canada (1925) and the
Church of South India (1947). It is particularly strong on the Papuan coast, the
Southern Highlands, eastern Papua, the New Guinea Islands (including
Bougainville, also known as the North Solomons), and the Western Solomons. Unlike the Anglican and
Roman Catholic churches in Papua New Guinea for reasons of church tradition as well as for Anglicans' cultural attitudes where it is substantial, the United Church welcomes female clergy. Like Presbyterian, Methodist, Congregationalist and United or Uniting churches elsewhere, its services are primarily for worship with scripture lessons, prayers and sermons, communion being once in a month or every few months. As these denominations in western countries have in recent years lost many members and participants to a lack of worship at all in recent decades, the United Church of Papua New Guinea and Solomon Islands has lost some to more fundamentalist sects. ==Local and overseas affiliations==