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Indigenous people from modern day Canada and Alaska invented the first sunglasses. The oldest pair known dates back to the year 1200. They work by limiting the amount of sunlight that hits your eyes, preventing snow blindness.

arturomf94 boosted

How does Mastodon's federation work? And how is it for a user to change from one community to another without losing his/her social graph?

Fosstodon

Fosstodon is an English speaking Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.