What was the primary goal of the civil war prior to the issuance of the emancipation proclamation?

Up until September 1862, the main focus of the war had been to preserve the Union. With the issuance of the Emancipation Proclamation freedom for slaves now became a legitimate war aim.

Before the Emancipation Proclamation, The Civil War was about preserving the Union.

cultural/diplomatic relations. most medieval japanese   culture has chinese origins. writing, architecture etc.

besides the fact that abraham lincoln abolished slavery, and greatly benefit black people, he had a heavy impact of the definition of what democracy was, and should be.