Answer:
B. Was the largest arena ever created for entertainment.
Explanation:
The Colosseum was commissioned by emperor Vespasian around 70-72 AD, it was intended to be a gift for the people of Rome. Vespasian´s son, emperor Titus, inaugurated it with 100 days of games and spectacles. These included gladiator duels and wild beast fights. It was used for four centuries, after that it was neglected. The Colosseum is a symbol of Rome and its tempestuous history.
Answer:
The Treaty of Nanking was a peace treaty signed on August 29, 1842 between the British Empire and the Qing Dynasty that marked the end of the First Opium War.
After the defeat of China in the war, the representatives of the British Empire and the China of Qing negotiated the terms of the treaty aboard the British warship HMS Cornwallis, in waters of Nanking. On August 29, 1842, the British representative Sir Henry Pottinger and the representatives of Qing, Qiying, Ilibu and Niujian, signed the treaty which consisted of thirteen articles that were ratified by both Queen Victoria and Emperor Daoguang ten months later.
D. Free elections were held for the first time
About 100 miles got my answer from answer.com