Có ba loại câu hỏi đọc hiểu. Đối với mỗi loại câu hỏi, bạn sẽ sử dụng chuột để click vào một câu trả lời hoặc để di chuyển văn bản. Một số câu hỏi sẽ được giá trị nhiều hơn một điểm. Những câu hỏi này có hướng dẫn đặc biệt mà chỉ ra bao nhiêu điểm bạn có thể nhận được. | Test 2 The Underground Railroad Slavery was legal for over 200 years in some parts of North America particularly the southern states of the United States where the plantation system of agriculture depended on the labor of slaves most of whom came from Africa. Slaves had no rights or freedoms because they were thought of as property. From the time of its origin slavery had opponents. The abolitionist movement began in the 1600s when the Quakers in Pennsylvania objected to slavery on moral grounds and wanted to abolish the institution. In 1793 Canada passed a law abolishing slavery and declared that any escaped slaves who came to Canada would be free citizens. Slavery was already illegal in most northern states however slaves captured there by slave hunters could be returned to slavery in the South. Canada refused to return runaway slaves or to allow American slave hunters into the country. It is estimated that more than 30 000 runaway slaves immigrated to Canada and settled in the Great Lakes region between 1830 and 1865. The American antislavery movement was at the height of its activity during the 1800s when abolitionists developed the Underground Railroad a loosely organized system whereby runaway slaves were passed from safe house to safe house as they fled northwards to free states or Canada. The term was first used in the 1830s and came from an Ohio clergyman who said They who took passage on it disappeared from public view as if they had really gone to ground. Because the Underground Railroad was so secret few records exist that would reveal the true number of people who traveled it to freedom. The most active routes on the railroad were in Ohio Indiana and western Pennsylvania. Runaway slaves usually traveled alone or in small groups. Most were young men between the ages of 16 and 35. The fugitives hid in wagons under loads of hay or potatoes or in furniture and boxes in steamers and on rafts. They traveled on foot through swamps and woods moving only a few
