The Pledge of Allegiance is First Published in 'The Youth's Companion' Magazine

The Pledge of Allegiance was written in 1892 by Francis Bellamy (1855-1931), a Baptist minister, a Christian socialist, and the cousin of socialist utopian novelist Edward Bellamy (1850-1898). The original "Pledge of Allegiance" was published in the September 8 issue of the popular children's magazine The Youth's Companion as part of the National Public-School Celebration of Columbus Day, a celebration of the 400th anniversary of Christopher Columbus's arrival in the Americas. The event was conceived and promoted by James B. Upham, a marketer for the magazine, in a campaign to encourage patriotism and the display of the American flag in public schools.

http://en.wikipedia.org/wiki/Pledge_of_Allegiance