Invasions of people--many of the groups came as military and fought the Romans as invading forces.
Counterclaim--they were migration patterns as they were attempting to gain access to an empire with advanced trade and education. Migrating to the Roman Empire gave a person or group with extra resources.
C) Zebulon Pike led the first expedition that explored the new purchased Louisiana territory. Specifically, Pike was sent out by Thomas Jefferson to explore and document the southern portion of the Louisiana Territory and to find the headwaters of the Red River. However, his expedition happened during the same time as the Lewis and Clark expedition.
The answer would be 'The Colonist refuse to buy English products.'
Answer:
The Silk Road and the Great Wall of China represent different approaches and goals of the Chinese foreign policy.
The Silk Road is expansionary foreign policy: its goal is to increase communications and trade with other countries, from the Mediterranean, to Iran, to Tibet.
The Great of Wall of China has the opposite goal: to keep foreign invaders from entering the Chinese hinterland.