在一万五千多年前进行第一次迁移的是古印度人，他们是美洲中部和南部的印第安人的祖先。
The first, Paleo-Indian, wave more than 15,000 years ago was ancestral to all Central and South American Indians.
根据特纳的说法，这与单一的古印度人迁出北亚的想法是一致的，他通过校准牙齿微进化的速率，将其设定在14000年前。
According to Turner, this ties in with the idea of a single Paleo-lndian migration out of North Asia, which he sets at before 14,000 years ago by calibrating rates of dental micro-evolution.
有很多古人(古印度人)不仅努力理解无限，还认为给无限大和无限小的不同分类定义很重要。
Here's a group of ancient people (ancient Indians) trying not only to comprehend the infinite but somehow thought it important to name so many divisions of infinitely large and small.
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