The Ural mountain range and the Caucasus mountain range separates Europe from Asia.
It was "conformity" that marked American mainstream society in the 1950s, which is why the 1960s are often referred to as a period of counterculture.
Answers:
Arabic numerals
, they made Algebra, via Al-Khwarizmi
, they provided an expansion of geographic knowledge
, they showed a difference between smallpox and measles
, they diagnosed rabies, diabetes, gout, and hemophilia
, they were good at performing amputations and cauterizations
, and they discovered the circulation of blood and the use of alcohol as an antiseptic.
They responded by attacking protesters and even innocent bystanders.