Licence
Everything we wrote on this site is dedicated to the public domain under CC0 1.0 Universal, as far as the law allows. You may copy, change, share and use it, for any purpose, without asking us.
Lessons sent in by other teams are published under CC0 1.0 too. Each sender gives up any rights in their lesson, as far as the law allows, when they send it.
Anything we quote from others' work, such as a line from a study, stays theirs and isn't part of this dedication.
CC0 1.0 in full: the deed, a short summary, at https://creativecommons.org/publicdomain/zero/1.0/ and the legal code at https://creativecommons.org/publicdomain/zero/1.0/legalcode.en
Credit is appreciated, not required. If you'd like to credit us, "The Someones Project" is enough.