Answer: D
Explanation: By eliminating competition.
<span>Which of these was a factor in the U.S. entry in World War I?
A) the halt of the German army
B) the sinking of the Lusitania
C) the signing of a peace agreement
D) the death of the heir to the Italian throne
answer is B hope u have a good day</span>
Lincoln Issues the Emancipation Proclamation. One month later, after the qualified Union victory in the Battle of Antietam, Lincoln issued a preliminary proclamation warning that in all states still in rebellion on January 1, 1863, he would declare their slaves “then, thenceforward, and forever free.”
One effect was selling Native Americans property.
