Which invention or development had the greatest impact on society

Who tried to stop the civil rights act of 1964 from passing the us senate and what tactic did they use? how was their opposition overcome?

How was the creation of parliament a step toward the creation of democracy in england? [ 15 points ]

Why were chinese american immigrants frequently detained when trying to immigrate through angel island? the rules for immigration were stricter at this checkpoint due to health issues that were prevalent among asian populations at this time. the location of the island was difficult to reach, and ships to the mainland were often prevented from sailing more than once a week. immigration agents were notorious for asking immigrants confusing questions as a means of denying them entry. low wages caused a shortage of immigration officials, so many immigrants had to wait weeks or months before their applications were processed.