Benchmark 10H
Historical Perspectives: Explaining the Diversity of Life
Grades 9-12, page 254

Prior to Charles Darwin, the most widespread belief was that all known species were created at the same time and remained unchanged throughout history. Some scientists at the time believed that features an individual acquired during its lifetime could be passed on to its offspring, and the species could thereby gradually change to fit its environment better.

See Content Standard G History and Nature of Science (grades 9-12): Historical Perspectives