I would say mostly economic factors: common currency, common market, wide-scale trade among the countries. If one country is hit, the others will also suffer: this brings in the feeling of solidarity.
other than that, European culture is actually quite unified, with many shared valued, such as universal health care and religious freedom, yet connection to Christianity.
It allowed farmers to plant water wherever, and help make dry soil more suitable for planting overall.
<span>President Andrew Jackson fought bravely against the Indians in numerous wars before becoming president in 1828. President Jackson was a strong opponent of Indian tribes. On May 28, 1830, President Jackson signed into law the Indian Removal Act. Congress passed the treaty in order to relocate the Indian tribes living east of the Mississippi River to lands in the west. Although, the act did not order the removal of the Indians, it did allow the president to negotiate land by exchanging treaties with tribes living within the boundaries of the states.</span>
Answer:
In the 11th century the Cordoban scholar Al-Bakri traveled to the region and gave a detailed description of the kingdom
