Which mathematician was also the world’s first computer programmer?

Which of the following is an example of the pull factor known as economic migration? a. better educational opportunities pulling people towards a new country b. mexican laborers entering the us to work in agricultural jobs c. joining family members that are already in a new country d. crop failures driving people away from their country i am unsure on this question, i was thinking b? but i could be wrong.

What was the great awakening? a. a religious movement b. a social movement against slavery c. a political rebellion d. a scientific movement

Which events are correlated but do not necessarily have a causal relationship?