Unitarian Univeralists are a merged denomination… coming from two very old New England protestant groups.
We reject Hell as a punishment for humans. We see Jesus as a human adopted by God as his son.
The original Pilgrim church in Plymouth plantation became Universalist in the 1800’s … along with hundreds of other New England churches.
Over time, the two denominations kept bumping into each other at gatherings seeking greater perfection of American society … and a joke was born:
“We merged because Unitarians thought God was too loving to send mankind to hell, and Universalists thought humans were too lovable for God to want to.”
I have a strong interest in interpreting the New Testament with a historical perspective that the primitive Christiain church might have been distinctly “Binitarian” before the doctrine of the Trinity became mainstream in the 300’s CE.