On July 20, 1822, Johann Mendel was born (later named Gregor). He was a son of two small famers whom took the risk of their finances for Johann's education.
21 years later, Mendel was running out of money for food and school. One of his teachers advised him to go become a monk at Abbey of St. Thomas in Brünn. That way he could still study for science without worrying about his next meal. Joining the monks gave him the name Gregor.
During his time at Abbey of St. Thomas in Brünn, he became a priest, which he did not enjoy, so he got a job as a high school teacher. Although he had the knowledge for his studies, he did not pass exam that would qualify him as a teacher. This happened to him twice.
He began to work at the garden and this is when he was wondering how and why the plants are different. Thus, made him try experiments with the pea plants.
I wonder why the plants are different colors.
His experiments took him about 8 years and he published his results in 1865. From his experiments, he grew over 10000 pea plants, this made him realize how plants inherit traits from their "parents".
At age 61 he died by a case of nephritis. Later on, after his death, he was named the Father of Genetics and was became more reliable for his studies of genetics.