Mendelian inheritance (Also known as Mendelian genetics or Mendelism)is a scientific description of how hereditary characteristics are passed from parent organisms to their offspring; it underlies much of genetics--or the study of heredity and the variation of inheredited characteristics. The term came from one of Gregor Mendel's works which was published in the mid 1800s, more specifically 1865-1866. Certain interpretations of Mendelian inheritance started the concept of Eugenics.
1: What did we have to write about again?
1: Ohhh you mean that thing by the guy who did the thing with the Peas?
2: Wha--yes you idiot.