Which of these events in the thirteen american colonies occurred last in 1775?
a- stamp act enacted by the british parliament
b- colonial minutemen and british troops clash at lexington
c- boston tea party occurs or
d- british parliament passes town shed acts

the emancipation proclamation was the aim of the war change to include the freeing of slaves in addition to preserving the union. the 13th amendment, which abolished slavery in the u.s. was passed on december 6th 1865.

as promised, lincoln waited to unveil the proclamation until he could do so with success from the union military advance. on september 22nd 1862, after a victory at antietam, he publicly announced a preliminary emancipation proclamation, declaring all slaves free in the rebellious states as of january 1st 1863.