The Dynamo-powered torch (flashlight)
the jerry can
Marco Polo traveled during the middle ages (AP period 3), for this the communication technology was not very advanced and Western Europe didn't really know the situation of East Asia and vice versa. When Marco Polo explained his travels to the Europeans of the greatness of China many Europeans decided to go and see for themselves if this greatness was indeed true. When the Europeans arrived in China they were very impressed and a new promotion of travel to China emerged, INCREASING China's economy.
D is the correct answer.
Pickett's Charge was led by General Pickett of the traitorous Confederate Army at the Battle of Gettysburg on the Third and Final Day of the Battle.
Pickett led his troops across farm fields but his forces were forced into choke points along fences and summarily cut down by the American Army's cannon fire.
The charge failed and the traitorous Confederate Army retreated back to Virginia, marking a major turning point in the war.
The election of 1800 was fiercely contested and facilitated the rise of the two-party system and bitter partisanship.
Upon entering office, Jefferson focused on reducing the national debt he had inherited from his predecessors. His administration lowered excise taxes while slashing government spending. Additionally, the Jefferson administration reduced the size of the Navy, ultimately bringing the national debt down from $83 to $57 million. Foreign developments, however, including the intensification of piracy along the Barbary Coast, would necessitate the rebuilding of the Navy and its establishment as a permanent part of the US government.
Jefferson dealt with two major challenges to US authority: piracy along the Barbary Coast of North Africa, and British impressment, which resulted in Jefferson instating a mass embargo of European goods, the Embargo Act of 1807.
Jefferson authorized the Louisiana Purchase, which effectively doubled the territory of the United States.
Historians use both the timeline and the calendar, but they are
used for different purposes. Calendar is used by historians for marking
specific important dates, like the date of birth or the date of death. Timeline
is mostly used to describe an incident that has occurred over a period of time.
This occurrence could have started in one era and ended in another. These kind
of incidents that occur over a longer time are mostly depicted by timeline. For
example the reign of a ruler can be depicted by a timeline by any historian.