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Early 20th century.
lambert and leibniz
20th century
20th Century.
The 20th century.
Urbanization Suburbanization Counter urbanization
I am pretty sure that it is the early 20th century
Science and theory in the early 20th century?.
William Hoover invented the vacuum cleaner in the early 20th century.
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The Steamboat
Radio was not an important invention in the early 20th century. Instead it was developed by Heinrich Hertz in the 18th century. The cotton gin (APEX)
Urbanization in developing nations in Africa, Asia, and Latin America during the 20th century led to rapid population growth in cities, strained infrastructure, increased demand for services like healthcare and education, and raised concerns about housing and poverty. While urbanization brought economic opportunities and development, it also resulted in challenges such as informal settlements, inadequate resources, and environmental degradation. Governments in these regions struggled to meet the needs of urban populations and bridge the rural-urban divide.
In the early 20th century.
Chad, Niger, Mali, and Mauritania were know as the French Sahel in the early 20th century
Chad, Niger, Mali, and Mauritania were know as the French Sahel in the early 20th century
Early 19th Century to Early 20th Century