It was first proposed in the mid 1850s by doctor Ignaz Semmelweis who believed it would reduce mortality rates. It became a widespread thing around 1900 when everyone started doing it because they realized how important decontamination was.
Answer:
The campaign was heralded by the Battle of the Kalka River in May 1223, which resulted in a Mongol victory over the forces of several Rus' principalities. ... All Rus' principalities were forced to submit to Mongol rule and became vassals of the Golden Horde empire, some of which lasted until 1480
Explanation:
It was the first peaceful transfer of power between the parties that were under U. S constitution. When Thomas Jefferson (republican) succeeded John Adams (federalist) and this transfer occurred in despite of the defects in the constitution that caused a big breakdown in the electoral system. There were many federalist attacking Jefferson during the campaign calling him an Un-Christian deist and the Republicans ceitized Adams administration's foreign, the defenses and how was his internal security policies.
I hope this answer help you.
<span>Martin Luther lived for 62 years (1483 to1546) he did 2 significant things that helped spread the Bible and Christian teachings in Germany: First and foremost he translated the Bible into the German vernacular to make it easy for the common man to read and secondly he printed and distributed literature challenging the right of the popes and clergy to exclusively interpret the scriptures on behalf of the laity.</span>