Answer:
Prosperity in the Gupta Empire initiated a period known as the Golden Age of India, marked by extensive inventions and discoveries in science, technology, engineering, art, dialectic, literature, logic, mathematics, astronomy, religion, and philosophy.
Explanation:
i looked it up
The City Wall of Nanjing<span> (</span>Chinese<span>: </span>南京城墙<span>; </span>pinyin<span>: </span>Nánjīng chéngqiáng<span>) was designed by </span>Emperor Zhu Yuanzhang<span> (r. 1328–1398) after he founded the </span>Ming Dynasty<span> (1368–1644) and established </span>Nanjing<span> as the capital 600 years ago. To consolidate his sovereignty and keep out invaders, he adopted the suggestions of advisor Zhu Sheng to build a higher </span>city wall, to collect grains and to postpone the coronation. Then, he started to build the city wall. It took 21 years to complete, and used 200,000 laborers to move 7 million cubic metres of earth. The City Wall of Nanjing was among the largest city walls ever constructed in China.[1][2]<span> The enclosed </span>Nanjing City<span> is about 55 square kilometers.</span>
Before the Great Emancipation of 1861, 10.5 million serfs were privately owned, 9.5 million were owned by the State, and about 900,000 worked for the Tsar himself.
The correct order is:
Political Parties Emerged: 1681, emergence of the Tory faction to oppose the Whig held Parliament.
The Glorious Revolution (1688)
First Cabinet system utilized by King: reign of George I in 1714
First Prime Minister: Walpole in 1721
The correct answer is option D. "Companies replaced hand-operated brakes with air brakes on trains". The development of air brakes on trains was a significant improvement of railroad safety. Air brakes function much more faster than hand-operated brakes, because hand-operated brakes required that the brakemen turned the brakes in one car and jump to the next to set the brakes on, and so on.