What are some of the scientific advances made by the Chaldeans?

Scientific advances made by the Chaldeans include:

1. A new empirical method to Astronomy (the study of celestial objects and a branch in science).

2. The recording of movements of the moon.

3. The calendar that says the seven days of the week (Monday, Tuesday, Wednesday, Thursday, etc).

4. The sundial.

the menu would be considered a problem for students who have food allergies.

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answer; i believe the answer is (mesopotamia); modern day