World Christian Encyclopedia is a reference work

Reference work

A reference work is a compendium of information, usually of a specific type, compiled in a book for ease of reference. That is, the information is intended to be quickly found when needed. Reference works are usually referred to for particular pieces of information, rather than read beginning to end...

 published by Oxford University Press

Oxford University Press

Oxford University Press is the largest university press in the world. It is a department of the University of Oxford and is governed by a group of 15 academics appointed by the Vice-Chancellor known as the Delegates of the Press. They are headed by the Secretary to the Delegates, who serves as...

, known for providing membership statistics for major and minor world religion

Religion

Religion is a collection of cultural systems, belief systems, and worldviews that establishes symbols that relate humanity to spirituality and, sometimes, to moral values. Many religions have narratives, symbols, traditions and sacred histories that are intended to give meaning to life or to...

s in every country of the world, including historical data and projections of future populations.

The first edition, by David B. Barrett, was published in 1982. The second edition (ISBN 978-0195079630), by Barrett, George Thomas Kurian, and Todd M. Johnson, was published in 2001. The research team was originally based in Nairobi

Nairobi

Nairobi is the capital and largest city of Kenya. The city and its surrounding area also forms the Nairobi County. The name "Nairobi" comes from the Maasai phrase Enkare Nyirobi, which translates to "the place of cool waters". However, it is popularly known as the "Green City in the Sun" and is...

, Kenya

Kenya

Kenya , officially known as the Republic of Kenya, is a country in East Africa that lies on the equator, with the Indian Ocean to its south-east...

, and later relocated to Richmond, Virginia

Richmond, Virginia

Richmond is the capital of the Commonwealth of Virginia, in the United States. It is an independent city and not part of any county. Richmond is the center of the Richmond Metropolitan Statistical Area and the Greater Richmond area...

.

Despite the name, the encyclopedia includes membership data for numerous non-Christian religions. However, the work has been described as serving as "an informational undergirding for Christian missionary

Mission (Christian)

Christian missionary activities often involve sending individuals and groups , to foreign countries and to places in their own homeland. This has frequently involved not only evangelization , but also humanitarian work, especially among the poor and disadvantaged...

work".

The data incorporated into the World Christian Encyclopedia have been made available online at the World Christian Database. While controversial in some respects, the results have been studied and found "highly correlated with other sources of data" but "consistently gave a higher estimate for percent Christian in comparison to other cross-national data sets" according to one study.

External links

• Richard N. Ostling, "Counting Every Soul on Earth", Time, 1982-05-03.