Simplify the following text for a Grade 16 native English-speaking person.
Original: Christapor Mikaelian ( Armenian : ) also known by his noms de guerre Hellen , Topal , and Edward , ( October 18 , 1859 - March 1 , 1905 ) was one of the three founders of the Armenian Revolutionary Federation along Stepan Zorian and Simon Zavarian , also part of Armenian national liberation movement .
Simplified: Christapor Mikaelian ( Armenian : ) also known by his noms de guerre Hellen , Topal , and Edward , ( 1859-1905 ) was one of the three founders of the Armenian Revolutionary Federation along Stepan Zorian and Simon Zavarian , also part of Armenian national liberation movement .