Catholics are one of the largest religious groups in the United States, outnumbering any single Protestant denomination.

In general, however, straight rows of stars and proportions similar to those later adopted officially were used. The principal acts affecting the flag of the United States are the following: ...

Most of the world has adopted the metric system as their official system of measurement with one major exception: the United States. “The U.S. stands out as the only major industrial nation that ...