First players to reach X total XP:

100,000,000	The 126	November 18, 2016	See rest
200,000,000	The 126	February 25, 2019	See rest
300,000,000	The 126	February 2, 2023	See rest
400,000,000	The 126	November 2, 2023	See rest
500,000,000	TBD		See rest