Unrestricted Submarine Warfare.
Germany attacked whatever because of this tactic, also taking out vessels carrying US citizens, which is unacceptable to the US.
It would be "Tikal" that is the largest Mayan ruin and contains one of the tallest structures in Pre-Columbian America, although it's the actual temples within Tikal that count.
add a picture please ! there is none available
Answer:
1876
Explanation:
While Italian innovator Antonio Meucci (pictured at left) is credited with inventing the first basic phone in 1849, and Frenchman Charles Bourseul devised a phone in 1854, Alexander Graham Bell won the first U.S. patent for the device in 1876
At least 15 million people were killed
