Caused World War One to be inevitable because the alliance system caused France to help Russia to help Serbia with the allied powers. With the Central Powers, Germany had a “blank check” alliance with Austria-Hungary, which meant that Germany promised to join in any war that Austria-Hungary wanted them to. This caused Germany to help Austria-Hungary against Serbia. Italy also joined in, but then switched sides due to the promise of land and tense relations with the Central Powers.
"With the Louisiana Purchase in 1803, the United States purchased approximately 828,000,000 square miles of territory from France, thereby doubling the size of the young republic. What was known as Louisiana Territory stretched from the Mississippi River in the east to the Rocky Mountains in the west and from the Gulf of Mexico in the south to the Canadian border in the north. Part or all of 15 states were eventually created from the land deal, which is considered one of the most important achievements of Thomas Jefferson’s presidency."
Answer:
b
Explanation:
the introduction comes at the start so you want it to be engaging and grab attention