Final answer:
The provided historical exercises do not offer information regarding the production of Cintas logo mats or the usage of Phoenix fiber, hence it is impossible to determine the truthfulness of the statement using the given content.
Step-by-step explanation:
The question about whether Cintas logo mats are printed on Phoenix fiber is not directly related to the reference information provided. The reference exercises focus on historical facts about cotton in the United States, not on the modern manufacturing details of a company's products. The references given discuss the first integrated textile mill in New England, the economic basis of cotton during the South's Reconstruction, and the preference of short staple over long staple cotton prior to the invention of the cotton gin. These historical details do not provide information about Cintas or Phoenix fiber. Therefore, without additional, specific information about Cintas' current manufacturing practices, we cannot accurately determine if the statement about Cintas logo mats is true or false.