If the emancipation proclamation only freed southern slaves, when did northern slaves become free

The declaration of Independence founded the roots of abolishing slavery in the North. Vermont became the first to ban slavery in its 1777 state constitution. It is reported that by 1804 all the states in the North had voted in favor of banning the slavery within their boundaries. While on 22 September 1862 Abraham Lincoln issued his preliminary Emancipation Proclamation.

d. dr. francis collins

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]