Atually, UO was and wasn't the first MMORPG XD It was the first in a way because with UO was the term MMORPG first used, taken from MMOG coined in the mid 90s. The first graphical MMO was Neverwinter nights in 91, followed in mid 90s by Nexus: Kingdom of the winds (Korean), Meridian 59 and the Realm online, Ultima online followed a year after in '97. Lineage in '98 then EQ went live in '99 the same year as Asherons call.
All of those are still available to play except NWN, as a side note, Meridian 59 was the first 3D MMORPG.
History lesson complete XD
https://www.youtube.com/watch?v=cEGKVUzHlGk
The first MMO![]()