Simplify the following text for a Grade 3 native English-speaking person.
Original: The concept originated in the 1790s among the German Natural philosophers and , as proposed by Ã tienne Serres in 1824 â `` 26 , became known as the `` Meckel-Serres Law '' .
Simplified: It was an idea of Ã tienne Serres in 1824 â `` 26 .