How have tribal councils invested money from casinos into their communities? A. They have built a system of dams and levees to protect tribal land from flooding.

B. They have repaired and replaced roads and bridges throughout Washington State.

C. They have built retirement homes for elderly members.

D. They have purchased new lands to expand the size of reservations.

Explanation:

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.