Which one of these cities hosted the 2nd Continental Congress, technically making it our capital? (There were several! But only 1 listed here)
From September 30, 1777 to June 27, 1778, York, Pennsylvania, Court House hosted the Second Continental Congress, thus serving as our capital for those nine months.
Second Continental Congress locations:
May 10, 1775 to December 12, 1776: Philadelphia, State House
December 20, 1776 to February 27, 1777: Baltimore, Henry Fite’s House
March 4, 1777 to September 18, 1777: Philadelphia, State House
September 27, 1777 (one day): Lancaster, Pennsylvania, Court House
September 30, 1777 to June 27, 1778: York, Pennsylvania, Court House
July 2, 1778 to March 1, 1781: Philadelphia, College Hall, then State House
Source: Robert Fortenbaugh, The Nine Capitals of the United States, page 9.
http://www.senate.gov/reference/reference_item/Nine_Capitals_of_the_United_States.htm
More Info:
en.wikipedia.org