Complex sentence: Starting from 1811 he led greek language high schools in Asia minor and took part actively (1819-1826) in the greek war of liberation and is an important figure in the History of Modern Greece.
Split into simpler sentences: Starting from 1811 he led greek language high schools in Asia minor. Eventually, he would take an active part (1819-1826) in the greek war of liberation and is an important figure in the History of Modern Greece.