<p><strong>Gregor Johann Mendel</strong> (July 20, 1822<sup class="reference" id="_ref-0">[1]</sup> &ndash; January 6, 1884) was a Moravian<sup class="reference" id="_ref-1">[2]</sup> Augustinian priest and scientist researcher often called the &quot;father of modern genetics&quot; for his study of the inheritance of traits in pea plants. &nbsp;<br />Mendel showed that the inheritance of traits follows particular laws, which were later named after him. The significance of Mendel's work was not recognised until the turn of the 20th century. Its rediscovery prompted the foundation of genetics.<br /><br />The main contribution of him is that there is some entities that are transmitted with independent occurrance. A strong indication of inheritance objects. It indicates that there is a distinct information flow in living organisms. This concept seems obvious now, but it was an important philosphical paradigm. The world does not have to be that way. I.e., no discrete material that can be inherited with discrete or digital behaviour. We now know that such a distinct entity is a gene.</p>