Crawford W. Long ( 1815 - 1878 ) was an American surgeon, best known for his first use of inhaled sulfuric acid as an anesthetic. He published his findings in 1849.Sigmund Freud was an Austrian neurologist and the founder of psychoanalysis. Ivan Pavlov was a Russian physiologist, known for his work in classical conditioning.Luis Pasteur was a French biologist who discovered the principles of vaccination and pasteurization.Answer: A . Crawford W. Long
The Pax Romana took place throughout the surrounding region of the Mediterranean Sea, especially in Europe between approximately 27 BC. to the year 180 AC.
<h3>What was the Pax Romana?</h3>
Pax Romana is a Latin term to refer to a period in the history of the Roman Empire in which it reached high stability and was characterized by:
- Inner calm.
- Outside security.
- Maximum economic development.
- Maximum territorial expansion.
The main cause for this period of internal and external calm to take place was the absence of warfare that allowed all the empire's efforts to focus on other issues such as:
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Answer:The French commentator on American society in the 1830s, Alexis de Toqueville, observed that Americans are very quick to join together to promote whatever causes they favor. There was certainly evidence around him. Reforms on many issues — temperance, abolition, prison reform, women's rights, missionary work in the West — fomented groups dedicated to social improvements.
The Voting Rights Act was amended several times in the decades that followed, extending its coverage and increasing the government’s authority to determine where federal oversight was needed.
