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.
Between 6-12 months, deaf children will use manual jargon, and will communicate with gestures, such as pulling and pointing. Many deaf children will sign their first word around 8 months of age and up to 10 or more signs by 12 months of age (Andrews, Logan, Phelan, 2008). Later language developmental milestones (from 1-4 years of age) further evidence a strikingly similar order of progression.