Simplify the following text for a Grade 8 native English-speaking person.
Original: Around 1900 Darwinism was eclipsed by Mendelism until the modern evolutionary synthesis unified Darwin 's and Gregor Mendel 's ideas .
Simplified: Around 1900 , Gregor Mendel 's work was rediscovered , Darwinism was the word used to classify the ideas . Today , both theories have been unified .