The Philadelphia Act was signed into law on April 14, 1865 by President John C. Fremont, establishing Philadelphia as the new official capital of the United States of America. 1. The City of Philadelphia shall henceforth be recognized as the capital city of these United States of America. 2. Federal tax money shall be allotted to bring Independence Hall and other Revolutionary-era buildings to their best quality. Independence Hall shall serve as the new Congressional building, when finished. -- Authorized and signed by President John C. Fremont, April 14, 1865 Philadelphia, United States