The first tool was called (a)   .

This tool was discovered by chance when a courageous human pick it up during the volcanic eruption.

(a)  

Was usually considered as the major ingredient to make bricks.

(a)  

A remarkable technology during those times.

(a)  

It was about 4,000 BCE.

(a)  

In fact they are considered as the first scientist.

(a)  

This technology tapped the wind to grind grains.

(a)  

Who am I?

(a)  

Just write the surname: Ex. Castillo

(a)  

What month?

(a)  

Write your answer corresponding to _?_ (a)   _?_ Ex. cat-dog

The answer is correspond to two - ?-. You may write as Example: cat-dog

(a)  

Distance of the North Pole Marathon across the ice?

(a)  

Who am I? Just write Example: Castillo

(a)