Data Licenses

Images

Yesterdays hosts images with a variety of licenses. These images, as well as the metadata we have collected from their sources, may have copyright protections. We do our best to document the licenses of these images on their detail pages.

User-submitted data

All data submitted by Yesterdays users, including georeferences and comments, are released into the public domain (CC0). You may query our API for this metadata and use it for any purpose.

Source code

The source code for Yesterdays is released under AGPLv3 or any later version. You can read the full license terms here.