https://www.reuters.com/article/us-facebook-outages/facebook-instagram-whatsapp-hit-by-outages-downdetector-idUSKCN1RQ0BE
https://muratbuffalo.blogspot.com/2019/04/azure-cosmos-db-microsofts-cloud-born.html
https://www.notechmagazine.com/2013/12/the-thomas-cook-railway-map-of-europe.html
https://www.cockroachlabs.com/blog/calendar-versioning/
https://www.theguardian.com/books/2019/apr/10/extraordinary-500-year-old-library-catalogue-reveals-books-lost-to-time-libro-de-los-epitomes
https://www.brianchristner.io/how-a-single-raspberry-pi-made-my-home-network-faster/