The reason they went to war is when the Athens interfered in Persian affairs.
The correct answers are B and D.
B) The Inca road system, known in Quechua language as <em>Qhapaq Ñan</em>, was the largest transportation system in Pre-Columbian South America. It connected important nodes of the Inca Empire following the Andes, from the North in what today is Colombia to the South in what today is Argentina.
D) They also built large stone cities in the Andes mountains, the most famous one among them was Machu Picchu, which is made completely out of giant blocks of stone fitted to each other without mortar.
Answer:
The correct answer is - to expedite trade by finding and charting alternative methods of transport to Asia.
The Ottomans made a large empire, and they managed to gain control of the trade routes between Europe and Asia, demanding high taxes for both sides if they wanted to use their territory for trade. The Europeans did not fancy this, so they sponsored an expedition, one of many to come so that a new sea route is found for Asia, thus trading through it freely. Columbus was the main explorer of one of those missions. He went westwards with the ships he had at disposal, hoping that he will come to the eastern coast of Asia. He indeed came to some islands, and later a mainland, and all excited about it he called the natives Indians, as he actually thought it is India that he reached. Little did he knew that he actually discovered new continents.
Explanation:
