Despite often valid criticism, Wikipedia is one of the most commonly used platforms for research and learning in the world. And since Wikipedia's pages are crowdsourced, the power to share accurate, comprehensive information with the world is in your hands. For this project you will choose an under-documented artist and contribute one accurate piece of information to their Wikipedia page.
First, find an artist from history with a Wikipedia entry that is lacking in detail. Entries for non-western artists, and female artists in particular are often lacking detail. Look for Wikipedia entries that are very short, contain very little biographical information, lack links to the artist's most influential artworks, or has a "this article needs to be expanded" message across the top of the page.
Research the artist. Any information you plan to add to their entry must come from a reputable source, meaning a website or publication by a museum or academic institution, a well-researched book, or, ideally, material by the artist themselves—for older artists this is often letters or manifestos, and more recent artists may have been interviewed.
Congratulations! You've added to the world's most accessible library of knowledge about art history!