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olga2289 [7]
2 years ago
12

When did doctors start washing their hands?

History
1 answer:
Nat2105 [25]2 years ago
6 0
In 1847 while working in the Maternity Department of the Vienna Lying-in Hospital Ignaz Semmelweis demonstrated that the incidence of puerperal fever could be drastically reduced by appropriate hand washing
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How is the Jim Crow laws an example of a primary source
Vladimir [108]

Answer:

Hope this helps

Explanation:

in U.S. history, any of the laws that enforced racial segregation in the South between the end of Reconstruction in 1877 and the beginning of the civil rights movement in the 1950s. Jim Crow was the name of a minstrel routine (actually Jump Jim Crow) performed beginning in 1828 by its author, Thomas Dartmouth (“Daddy”) Rice, and by many imitators, including actor Joseph Jefferson. The term came to be a derogatory epithet for African Americans and a designation for their segregated life.

From the late 1870s, Southern state legislatures, no longer controlled by so-called carpetbaggers and freedmen, passed laws requiring the separation of whites from “persons of colour” in public transportation and schools. Generally, anyone of ascertainable or strongly suspected Black ancestry in any degree was for that purpose a “person of colour”; the pre-Civil War distinction favouring those whose ancestry was known to be mixed—particularly the half-French “free persons of colour” in Louisiana—was abandoned. The segregation principle was extended to parks, cemeteries, theatres, and restaurants in an effort to prevent any contact between Blacks and whites as equals. It was codified on local and state levels and most famously with the “separate but equal” decision of the U.S. Supreme Court in Plessy v. Ferguson (1896). and they are an example because it was dated al long time ago in history and helps us know what happened in the past of countries and america

4 0
3 years ago
Printing press origin
ELEN [110]

Answer:

A printing press is a device that squeezes ink onto paper or a fine print surface. The development and spread of the press was one of the most influential events of the second millennium as it created an intellectual and social revolution, marked the beginning of the mass media, and escorted the modern age. German Johannes Gutenberg invented the printing press around 1440, when he created a screw press. A print press is used to publish books and newspapers. Over a period of time the word 'press' turned to mean not only the metal machine used, but also the company that used it; the word comes from the act of pressing the type against the surface of the paper.

Before the 14th century the usual method of printing information was by using blocks of wood, or etching material like leather. When Gutenberg invented folding to create mobile type, it became a much faster process, and thus commercially profitable.

5 0
2 years ago
The movement known as the Enlightenment focused on the idea that
n200080 [17]
B. problems could be solved using human reason.
8 0
3 years ago
Read 2 more answers
What are the major topics contained in Washington’s constitution? Check all that apply.
Trava [24]

Answer:

The correct answers are A, D and E. The major topics contained in Washington’s constitution are citizen's rights, government structure and government responsibilities.

Explanation:

The current Constitution of Washington entered into force in 1889, created prior to the elevation of Washington to the status of state. The Legislative Power of Washington can propose amendments to the Constitution, and to be approved, they need to receive at least two thirds of the votes of the Senate and the House of Representatives of the state, and then, two thirds of the votes of the electorate of the state. Washington, through a referendum. Amendments can also be made through constitutional conventions, which are special political meetings. The amendments made in this way need to be approved by at least 51% of each House of Legislative Power, and then, by at least 60% of the state's electoral population, in a referendum.

4 0
3 years ago
Which of the following clean the earth's atmosphere?
Yuri [45]

Answer: B. Rain forests

Explanation: Without rainforests, our planet is unable to mitigate excess greenhouse gas emissions, which destabilizes the Earth's climate. Rainforests store and filter excess carbon and other pollutants from the atmosphere and release oxygen through photosynthesis.

In the summary: Rainforests retain and filter excess carbon and other contaminants from the atmosphere, while also releasing oxygen via photosynthesis. Natural air filters, Inforests assist to clean up pollutants and improve air quality.                              

I hope that helps

5 0
2 years ago
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