What important fact about ichabod crane comes to light in the passage?

The important fact about Ichabod Crane that comes to light in the passage is the last one :

Ichabod was an unjust teacher who punished his students with prejudice.

He punished those he did not like or considered could take the blame or burden for somebody else. He chose wisely whom to punish.

Explanation:

Ichabod Crane is a fictional figure and the protagonist in Washington Irving's short story, "The Legend of Sleepy Hollow", first written in 1820. In traditional society, this story is seldom retitled as "The Headless Horseman."According to a system by Irving and a certification written in longhand by Martin Van Buren, the 'pattern' for the cast of Ichabod Crane was based on the original Kinderhook schoolmaster named Jesse Merwin born in Connecticut whom Irving converted friends within Kinderhook, New York, in 1809.

the answer should be:

the intervention of the supernatural gives gilgamesh hope that he will defeat humbaba.