What were some groups that support slavery in the mid 1700’s?

What were some groups that support slavery in the mid-1700s? Plantation owners and others who profited from the slave economy.

What were some groups that began to fight slavery in the mid-1700s? Quakers and freed slaves.

Why did people begin to question the worth of slavery?

the alfred thayer mahan award for literary achievement is awarded each year by the navy league of the united states. the award is named for an american naval historian and theorist, rear admiral alfred thayer mahan, united states navy who, through his writing, provided stimulus and guidance to those who share in the defense of the nation. presented since 1957, "this award for literary achievement is awarded to a u.s. navy officer, u.s. marine corps officer, enlisted service member, or civilian who has made a notable literary contribution that has advanced the knowledge of the importance of sea power in the united states."[1]