A pronoun is a word that takes the place of a noun. Examples: he, she, it, they, someone, who. Pronouns can do all of the things that nouns can do. They can be subjects, direct objects, indirect objects, object of the preposition, and more. Heck, the word pronoun even has the word noun in it! Let's look at a few examples. Erik Weihenmayer is a blind mountain climber.
On October 1, 1945, Project RAND was set up under special contract to the Douglas Aircraft Company and began operations in December 1945, expending a total of $640 in its first month of operation.
In 1920, Rand McNally began publishing road maps for the Gulf Oil Company, to be freely distributed at its service stations. By 1930, Rand McNally had two major road map competitors, General Drafting and Gousha, the latter of which was founded by a former Rand McNally sales representative.