Central Europe was mostly the place that influenced everyone the most. Germany, Austria, and Italy, being the musical leaders of the world, Austria being the most famous since Vienna was a musical center of the world. There were however famous composers in places such as Russia and France too.
Pollution from factory discharges and waste dumping. Also biodiversity from deforestation and other natural habitat losses
Islam first originated in Mecca in the 7th century.
1) Mass
2) I’m not exactly sure but I do know mass also determines the overall lifespan of a star
