What are the main ideas of Islam?

Which thirteenth century group invaded russia, leveling cities and massacring whole populations?

What was a major component of reaganomics? 1. the belief that tax cuts to the wealthy would trickle down to the less fortunate. 2.the belief that providing tax cuts to lower-socioeconomic americans would boost the economy. 3.the belief that boosting home ownership would lead to americans having an investment in the economy. 4.the belief that correcting the business cycle would boost output and reduce unemployment.

Which of the following was a goal of european conservation in the early 1800