They are the new haven starting quests found here
http://www.uoguide.com/New_player_quest
The plague quest line is found here
http://www.uoguide.com/Classic_Quests
And this is 2 other quest lines I was curious about found here
https://uo.com/wiki/ultima-online-wiki/gameplay/quests/a-valley-of-one-quest-chain/
Just curious really. The other is a sunken ship found here
http://www.uoguide.com/Exploring_the_Deep
http://www.uoguide.com/New_player_quest
The plague quest line is found here
http://www.uoguide.com/Classic_Quests
And this is 2 other quest lines I was curious about found here
https://uo.com/wiki/ultima-online-wiki/gameplay/quests/a-valley-of-one-quest-chain/
Just curious really. The other is a sunken ship found here
http://www.uoguide.com/Exploring_the_Deep