# SPQR10 > In March 2020, I made the first open-source diagram of the COVID-19 virus. It was reused globally on Wikipedia, in classrooms, and media. ## Blog Information - [Homepage](https://paragraph.com/@spqr10/): Main blog page - [RSS Feed](https://api.paragraph.com/blogs/rss/@spqr10): Subscribe to updates ## Optional - [All Posts](https://paragraph.com/@spqr10/): Complete post archive - [Sitemap](https://paragraph.com/@spqr10/sitemap-index.xml): XML sitemap for crawlers