The last word of the Pledge of Allegiance is 'all', which is a pronoun used to refer to people or things in general. The Pledge of Allegiance was written in 1892 by Francis Bellamy, a Christian socialist minister, and was originally published in The Youth's Companion magazine. It was later adopted by Congress in 1942 as a pledge of loyalty to the United States of America. The full pledge is 'I pledge allegiance to the Flag of the United States of America, and to the Republic for which it stands, one Nation under God, indivisible, with liberty and justice for all.' The last word of this pledge is 'all', which refers to all people in the United States of America.