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105 Years of Serving Christian Schools

Founded in 1920, Christian Schools International has supported our member schools for more than 100 years. See the story of God’s faithfulness to CSI over time.

1920

National Union of Christian Schools (NUCS) established with 37 schools

First issue of Christian School Magazine is published
An image of the NUCS Constitution and By-laws

The National Union of Christian Schools Constitution and By-laws

1930

NUCS grows to 102 member schools by 1933
Magazine circulation reaches 6,100
A picture of an early copy of Christian School Magazine.

An early copy of Christian School Magazine.

1940

First Canadian school, King Christian School (formerly Holland Marsh District Christian School), joins NUCS.
Christian School Educational Foundation Established
Photo of 1945 NUCS board of directors.

A partial photo of the 1945 NUCS Board of Directors.

1950

25,000 students attend NUCS schools
First textbooks published under a grant from the Christian School Educational Foundation
Image of NUCS convention booklet from 1952

Event program from the 1952 NUCS convention

1960

45,000 students attend NUCS schools
First issue of Christian Educators Journal published by NUCS and the Christian Educators Association
The NUCS textbook committee reviews a new civics textbook.

Members of the NUCS education committee review a newly-civics textbook in 1962.

1970

65,000 students in member schools
Dedication of new East Paris Avenue office in Grand Rapids, MI
A photo of two guests at the 1979 NUCS building dedication peruse materials on a table.

Guests enjoy the 1979 office dedication

1980

National Union of Christian Schools becomes Christian Schools International (CSI)
Expansion of services, including customized and visionary board and strategic planning
A photo of a sign featuring the new organization name, Christian Schools International.

A photo of new office signage highlighting the organizational name change, circa 1980

1990

CSI is approved as a national accrediting organization
98,090 students enrolled in member schools
Cover image from the January/February 1992 edition of Christian Home and School Magazine, featuring two children playing in the snow.

Cover of the January/February 1992 edition of Christian Home & School magazine

2000

Emerging Leaders Development Institute (ELDI) established
Current accreditation protocol, Measuring the Mission, is developed
A photo of two students posing with a pumpkin craft on a school table.

Students from Twin Oaks Christian School (MO), one of the earliest CSI-accredited members

2010–2025

An image of a group of students standing outside of their school.

Students from Kabala Christian School in Sierra Leone

Growth of international membership beyond North America, including Australia, Indonesia, Japan, Nicaragua, Nigeria, and Thailand
Development of materials to help schools articulate their distinctly Christian identity
115,000+ students enrolled in CSI member schools
More than 350 CSI member schools served

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