Iglesia ni Cristo Day is observed in the Philippines every July 27, commemorating the foundation of the Iglesia ni Cristo (Church of Christ) in 1914. Founded by Felix Ysagun Manalo, the INC is a Christian denomination that claims to restore the original Christian Church established by Jesus Christ. Approximately 2.5% of the Philippine population belongs to the INC, making it the third largest religious denomination in the country. Although the Philippines is a secular state, the INC wields significant social influence. The day was designated in 2009 and was declared a non-working holiday in 2014 for the Church's centennial, although it typically remains a working holiday. Followers of the INC celebrate this day with solemnity, reflecting on their faith and the church's history.