2005.xx: Game by Neil Strauss published
2012.xx: r/TheRedPill launched
2016.02: Roosh becomes nationally famous when his meetups are cancelled
2017.08: The Daily Stormer becomes nationally famous during the censorship following the Unite the Right rally
2018.04: Incels become nationally famous due to the Toronto van attack
2018.10: Return of Kings goes on permanent hiatus
2019.05: Heartiste's blog is deplatformed by WordPress
2019.06: Roosh V Forum bans how-to-fornicate discussions
Got any more to add?