Hancock claimed to have invented vulcanization independently, and received a British patent, initiated in 1843, but finalized in 1844.
The steamboat not only moved people, but also goods. With the high demand in goods and fuel for these boats; along came thousands of jobs in the coal mines and in the factories. The steamboat also led to thousands of new settlement across America's rivers, including the huge boom of Indiana's Ohio River Cities.
Answer:
Japan's attack on Pearl Harbor took place on December 7, 1941. 18 ships were damaged or sunk, and 2,400 people were killed. Its most significant consequence was the entrance of the United States into World War II.
Explanation:
The 13th Amendment was necessary because the Emancipation Proclamation, issued by President Abraham Lincoln in January of 1863, did not end slavery entirely; those enslaved in border states had not been freed. ... The 13th Amendment forever abolished slavery as an institution in all U.S. states and territories
