Who was a legislature known as the great compromiser

Henry Clay.

Explanation:

Henry Clay wasa known as the great compromiser because  he was the one behind numerous major compromises that ocurred between the Northern and Southern states, regarding the issue of slavery. His compromises helped to delay the Civil War by roughly 40 years, give or take.

freedom of speech is also protected by the 1 amendment.

explanation:

here is pretty much what the 1st amendment says:

congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the government for a redress of grievances.