Russian-based ISPs are blocking free online library Wikipedia after content editors refused to delete an offending article. according to news reports. The URL of a page describing how to use charas, a type of cannabis, was banned by the court of a small Russian town, Cherny Yar. This forces almost 30% of ISPs to block Wikipedia completely, due to its https protocol. Wikipedia editors modified the article, adding further information and citations to reliable sources, to bring it in line with Wikipedia’s standards.”]
Source: https://www.bitdefender.com/blog/hotforsecurity/wikipedia-now-censored-in-russia/