1. weakened Persian and Byzantine rule
2. effective fighting methods.
Answer: A) Lincoln signed the Pacific Railroad Act of 1862 into law, which stimulated the construction of the railroad.
Explanation: Just took the test :)
Answer: The population more than doubled due to a declining death rate. Why was improved hospital care especially important to the poor? While wealthier patients could be treated at home, the poor were admit- ted to hospitals that were often unsani- tary.
Explanation: After 1400 world population grew more steadily. One reason was food. Europe's population doubled to almost 200 million during the 18th century, and doubled again during the 19th century, thanks to improved living conditions and healthcare. Between 1800 and 1900, the population of Europe more than doubled. Instead, populations soared because the death rate fell. Nutrition improved, thanks in part to improved methods of farming, food storage, and distribution. Medical advances and improvements in public sanitation also slowed death rates.
