Most of the information I've read pertains to Congress operating from different locations in the years after the U.S. was established. I believe I read that the constitution did declare New York as the capital but that Philadelphia was a temporary meeting place until Washington D.C. could be established. 

It probably goes without saying for the folks here, but I'm interested in the capital (the city) not the capitol (the building). I understand there were arguably several "functional" capitals, but I'm interested in the history of officially declared capitals.