Smallpox affected world history hundreds of years ago, and it was a disease that was common in Europe, but not common in the Americas until the Americas were colonized.

天花影响了几个世纪前的历史,这种病在欧洲很常见,但在美国不多见,直到美国成为殖民地

耶鲁公开课 - 生物医学工程探索课程节选

Just almost all the islands in that sea are inhabited by Greeks, mostly by the Greeks that came in that first wave of immigrants earlier on, not colonized during the eighth century and afterwards.

那片海域的诸岛上居住的几乎都是希腊人,他们大多都是早期的,第一批移民,而非八世纪以后的殖民者

耶鲁公开课 - 古希腊历史简介课程节选