Questions about Balrog

Short answers, pulled from the story.

What is a Balrog in J. R. R. Tolkien's Middle-earth?

A Balrog is one of the Maiar corrupted by Morgoth before the world began, serving as angelic spirits of fire who turned to evil.

When did J. R. R. Tolkien publish his essay Sigelwara Land about Balrogs?

J. R. R. Tolkien published an essay titled 'Sigelwara Land' in Medium Aevum between December 1932 and June 1934.

Who was Gothmog in the history of Balrogs during the First Age?

Gothmog stood twelve feet tall when he led the armies of Angband and held the title of Lord of the Balrogs and High Captain of the Hosts.

How long did Durin's Bane hide beneath the Misty Mountains before waking up?

The Balrog known as Durin's Bane hid beneath the Misty Mountains for over five millennia until miners disturbed its slumber.

In what year did Ralph Bakshi release an animated version of The Lord of the Rings featuring a Balrog?

Ralph Bakshi released an animated version of The Lord of the Rings in 1978 featuring Durin's Bane with large bat-like wings.