A word of caution:

These links are meant to be used as study-aids, and are not research-appropriate unless sponsored by a museum or educational institution. Many costume historical sites are a labor of love, run by hobbyists, not PhDs. Get what you can, but maintain skepticism!

Pre-historic

Ancient Middle East

Crete and Greece

Etruria and Rome

The Middle Ages

The Renaissance

The 17th Century

The 18th Century

19th Century Zeitgeist

Directoire/Empire

Romantic & Crinoline Periods

Late 19th Century and the Bustle

20th Century Zeitgeist

1900 - 1920

1920s - WWII

1947 - 1960

1960s and 1970s

Costume Research

Costume Collections