-
1790s - Thomas Jefferson's Cotton Thresher
The invention of the cotton seeder greatly improved the efficiency of cotton production, laid the foundation for the southern cotton industry, and thus influenced the economic landscape of the United States. -
1870s - Thomas Edison's Electric Light
Edison's incandescent light bulb made nighttime lighting possible, greatly changing people's daily routines and ways of entertainment.
1876- Alexander Graham Bell's Phone -
1885- Carl Friedrich Benz's car
Although Benz invented the car in Germany, shortly thereafter, the car also gained widespread development and application in the United States, completely changing people's way of transportation. -
1903- Wright Brothers Aircraft
The Wright brothers successfully test flew their planes for the first time, marking the beginning of the aviation era and greatly changing people's modes of transportation and perspectives. -
Social issues: With the acceleration of urbanization, the problem of urban slums is becoming increasingly serious. Poor working conditions and infringement of workers' rights have led to the continuous rise of labor movements.
-
Economic issues: Rapid industrialization has led to serious wealth inequality and social inequality. The rise of monopolistic enterprises has intensified unfair competition in the market, posing a threat to the interests of small and medium-sized enterprises and consumers.
-
Political issues: Corruption and political machinery are becoming increasingly prominent, and the political system is being questioned. At the same time, civil rights issues have also attracted widespread attention, including racial discrimination, women's rights, and so on.