Originally launched in September of 1997, Ultima Online continues to chart new territory in the online gaming space:

The more than 235,000 registered users now playing UO represent 125 countries located in each of the world’s time zones.
Active accounts have grown by more than 50% in the past year, representing UO’s greatest period of growth in its 3 1/2-year history.
Ultima Online is translated into six languages: Chinese, French, German, Japanese, Korean and Anglicized English.
Currently 22 servers located on four continents support UO.
More than half of UO players login every day.

More information on Ultima Online (can be found online)