Rise of Fascism. As the United States turned inwards to deal with the lingering effects of the Depression, militaristic regimes came to power in Germany, Italy, and Japan promising economic relief and national expansion.
Human faces are one of an infant's favorite and fascinating things to observe, especially when it's mom or dad or his own image staring back at him in a mirror. By 3-months-old, most babies know the difference between familiar faces and strange ones.
As a newborn, your baby has an innate ability to grasp objects, but it will take him at least a year to develop the coordination to pick up and hold things securely in his hands. He'll start working intensively on this skill by 3 months and make leaps with each passing month.