The caste system is a system that divides Hindus into four main categories - Brahmins, Kshatriyas, Vaishyas and the Shudras. Sorta like a pyramid of food groups in health. These castes were based on peoples daily jobs/occupations. Outside of the caste system there were the untouchables or otherwise known as the "the Dalits".
Hope I could help! :)
The toothbrush evolved over time and mainly out of necessity. Traces of the first toothbrush can be dated back as early as 3500 B.C.E. These bamboo sticks were then used just like a modern manual toothbrush to clean the teeth. Eventually, the Chinese version of the toothbrush made its way to Europe.
The group that supported his son-in-law Ali was D. the Shi'ites
Opposite to them, the Sunni Muslims believed that Abu Bakr should be the righteous leader.
Results of WWI.
-laid the foundation for the rise of totalitarians dictatorship.
-hatred created by Germans b\c of the treaty of Versailles
-economic destruction of Europe (depression)
and also nationalism.. I don't think I got all of it..lol
Spain (and Portugal) wanted to find a sea route to Asia because Portugal did not share trade routes with Asia and Europe (no Meditteranean Ports), Spain wanted to Spread Christianity, and both countries wanted to find more trade.