There were 5 great achievements, but one of them were Architecture. The ancient Romans developed many new techniques for buildings and construction of all types including concrete, Roman roads, Roman arches, and aqueducts, which evolved their time period.
1. The need for gold and silver made it lucrative to carry out trade with other countries
2. Mercantilism - The economic policy that emphasized the need of every nation to build as much wealth as it can in order to gain power
3. Insurance companies became more formalized as risk mitigation started gaining priority. Laws were changed to deal with insurance issues
4. free trade policies. Governments became involved themselves in trade by grant royal trade monopolies.
The Pacific railroad was constructed between 1863 and 1869.
Answer:
By the start of World War II in 1939, the Luftwaffe was the strongest and best-trained air force in the world. They played a crucial role in Germany's methodical and highly effective invasion of much of Western Europe, including Poland, Holland, Belgium and France.
Explanation:
