Answer:
The first President of the United States was George Washington, who led the U.S. Continental Army to victory over the United Kingdom during the American Revolutionary war. He served 2 terms before retiring, setting a standard for presidents of late to follow.
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McClellan discovered General Robert E. Lee's battle plan.
Obviously, infiltration and access to battle plans allow for the opponent to figure out what their opponent's plans are, thus giving McClellan the victory at Antietam.
Hope this helps!
Communication barrier was broken.
Explanation: It is because Morse code was created ago with no telephones and no technology, but when communication came into Morse code, communication broke down.
Handguns:
Colt M1911
Colt MK IV Series 80
M1917 Revolver
Luger P08
Rifles:
M1917 Enfield
Lee-Enfield No.4
Mauser 98/22
Mauser Gewehr 1898
Machine Guns:
M1914 Hotchkiss Machine Gun
Maxim MG08
Chauchat
Other:
Flammenwerfer M.16
Model 24 Stielhandgranate
Hope this helps!
Answer: any large ancient Roman agricultural estate that used a large number of peasant or slave laborers.