The Harvard College Library has digitized thousands of historical photographs, pamphlets, manuscripts, books, music scores, rare maps and other rare and unique materials. The vast majority of these images are freely available online for public access.

The easiest way to lose yourself in their collections is to Explore the Collections – they have various themes that you can chose from:

Of course my eye was caught by the Images of Colonialism – Africa and Asia and there are some great images from newspapers etc.

Thanks to Cheryl LaGuardia for alerting me on this.