According to the passage, in 1621, Thanksgiving was celebrated for

第一次庆祝感恩节是在 A: 1581 B: 1621 C: 1742 D: 1863

Some authorities believe that the real beginning of Thanksgiving was in the year of ______. A: 1621 B: 1622 C: 1623 D: 1624

The origin of the earliest Thanksgiving Day can date back to ______ . A: 1620 B: 1621 C: 1863 D: 1840

中国大学MOOC: What eminent appointment did John Donne receive in 1621? (4.2. 07:41-07:52)

When was Thanksgiving Day proclaimed as a national holiday A: In the year of 1863 B: Afterthe Civil Wa C: In the year of 1621 D: In the year of 1622

21、数控机床伺服相关参数中“各轴加减速时间常数T2”设置参数（ ） A: 1620 B: 1621 C: 1720 D: 1721

20、数控机床伺服相关参数中“各轴加减速时间常数T1”设置参数（ ） A: 1620 B: 1621 C: 1720 D: 1721

what was the reason Thanks giving was celebrated in 1621? A: To celebrate an autumn harvest B: To celebrate the new coloby C: to celebrate an Indian trational festival D: To celebrate famility reunion

The first Thanksgiving Day was celebrated by the pilgrims from Europe in 1621 for a good harvest and extending thanks to the native Americans who helped them through the first winter. A: 正确 B: 错误