Theophrastus was considered the father of botany in the approximate year of 300 BC.
He was an ancient Greek thinker, a student of Aristotle and later, his successor.
He wrote two large botanical works on the history of plants and on the causes of plants which were so comprehensive that 1,800 years went by before any newer discovery in botany was made.
He established a theory of plant growth and the analysis of plant structure. He also related plants to their natural environment and identified, classified and described 550 different plants.
During world war II, at least in America, it was African Americans who experience changes most like the changes experienced by women, because there was far more demand for them in the labor force.
Yet the politics of the 1790s (like the United States today) was dominated by the arguments of two distinct political groups: the Federalists and the Anti-Federalists. The political parties of the 1790s emerged because of disagreements over three main issues: the nature of government, the economy and foreign policy.