[3] After several years of Ateneo de Manila students asking for a school newspaper,[citation needed] The Guidon was founded on June 22 by 1929 by Rev.

[citation needed] Both versions of the paper were temporarily shut down by the martial law declaration of Ferdinand Marcos, eventually resuming publication as a single newspaper in 1973.

[citation needed] During this time the paper renamed its Research Department to the "Inquiry Team" and created an outreach program called Pamaskong Handog.

The newspaper also expanded to include the Operations, Human Resources, and Marketing positions and increased its involvement in University legislation, proposing amendments to the Campus Journalism Act of 1991.

The Writing Cluster, headed by the associate editor, produces content for the newspaper, with separate staff members for the News, Sports, Beyond Loyola, Features, and Inquiry sections of the newspaper, the cluster also has its online presence in the form of the Broadcast News, Vantage Magazine, and Science and Technology, which was created as a new section for the publication's 95th year.

ACED-The Guidon Workshop is a collaboration with the Ateneo Center for Educational Development that instructs Filipino public school students interested in journalism on basic news writing, editing, photography, and lay-outing.

Pressplay is an annual student press convention between The GUIDON and The LaSallian, De La Salle University's official newspaper, featuring seminars in writing, editing, photography, and art.