U.S. House of Representatives - Largest Protestant Church in the USA!

From the Library of Congress we learn that as late as 1868 the U.S. House of Representatives held church services in its chambers. Some of these were the largest church gatherings in our country at that time. As the article says:

The House moved to its current location on the south side of the Capitol in 1857. It contained the "largest Protestant Sabbath audience" in the United States when the First Congregational Church of Washington held services there from 1865 to 1868.



See the article on the Library of Congress site.