This mesoamerican civilization created a 365-day calendar and had skilled astronomers aztec mayan inca olmec.

 The correct answer is :  Mayan

Explanation:  The Mayans had a 365-day solar calendar, astronomers and mathematical experts. They planted in raised beds over the swamps. They had an advanced glyph writing system. The Mayans were very influenced by the Olmecs. In the social hierarchy of the Maya the nobles, painters, scribes, sculptors were highly respected, women rarely ruled on their own. the merchants formed the middle class, most were farmers.

is this question from a book? ?

chamberlains goal was to stop the uk ad germany from fighting which he went to hitler and asked if he could sign a peace treaty between germany and the uk