Answer:
Primacy effect
Explanation:
<em>The primacy effect</em> refers to impressions formed about others in the first encounters with them. When creating impressions of others, our first impression about that person determines strongly how we feel about them and what we think of them. Therefore, first impressions are more important than later impressions. Later judgments about the person, stem from the initial perception of the individual. Smell, speech, physical appearance, manner of approach and so on, shape the initial perception of an individual.
Here's the most prominent inventions from the early 1900's
1920- Hair Dryer
1920- First radio station
1920- The Thompson Sub-Machine Gun
1920- The Band Aid
1921- First robot built
1923- Traffic Signal
1925- Mechanical Television
1926- Liquid Fueled Rockets
1928- Penicillin
1929- Car radio