The last country to abolish slavery (in the Western world) was Brazil. It abolished slavery in 1888, by the time that almost 4 million slaves were transported from Africa to Brazil.
In the whole world, Mauritania was the last country to abolish slavery.
The rights in the first amendment are:<span> the right to freedom of religion, speech, the press, freedom to petition and (peaceful) assembly. </span>
B. the u.s invasion of cambodia