This question states that the sentence "We call them Antive Americans, as in the firsts ones here," uses the word "in". The OP wants to know why the word "in" is used, rather than being omitted.

The word "in" is making a reference to the subject discussed in the first half of the sentence. The word Native Americans refers to the fact that they are the indigenous group of people who lived in the area called North America. In fact, the Native Americans too were not originally from the North America region, but rather migrated over hundreds of thousands of years. The word Native American actually refers to a large number of ethnically and culturally different types of people. There were many languages, spiritual practices, methods of finding food. Some cultures existed in large cities, similar to our modern urban cities, while others were a nomad like people. It is important to know that while Native Americans have one name, it is because of their relationship to the Caucasian Europeans who traveled and dominated the present United States. If history unfolded in another way, our world would have a very perception of the indigenous Americans. For now, Native Americans will do.

第一个 NOTEBOOK

大家好！

这个我的第一个NOTEBOOK。

今天我用  iTalki 很多。我觉的天气不好，所以我用我的电脑。

晚上的时候我想回家还有看书。

OK！

 

First Notebook

Hey Everyone!

This is my first notebook.

today Im using iTalki a lot!. I feel today the weather is not so good, so Im using my computer alot.

Tonight when I go home, Ill read a book.

Okay!