Constantine I was the first Christian Roman Emperor. He ruled at the beginning of the 4th century and began the evolution of the empire into a Christian state.
Constantine I was born on February 27, c280 in modern day Serbia to army officer, Flavius Valerius Constantius. In 305 he was passed over in imperial succession, so Constantine fought a series of civil wars, finally becoming the sole Roman emperor. He ascribed his success to his conversion to Christianity. He renamed Byzantium as Constantinople and made it his capital. He died in 337.
Constantine I. (2013). The Biography Channel website. Retrieved 03:35, May 21, 2013, from http://www.biography.com/people/constantine-i-39496.
Constantine I. [Internet]. 2013. The Biography Channel website. Available from: http://www.biography.com/people/constantine-i-39496 [Accessed 21 May 2013].
"Constantine I." 2013. The Biography Channel website. May 21 2013, 03:35 http://www.biography.com/people/constantine-i-39496.
"Constantine I," The Biography Channel website, 2013, http://www.biography.com/people/constantine-i-39496 [accessed May 21, 2013].
"Constantine I," The Biography Channel website, http://www.biography.com/people/constantine-i-39496 (accessed May 21, 2013).
Constantine I [Internet]. The Biography Channel website; 2013 [cited 2013 May 21] Available from: http://www.biography.com/people/constantine-i-39496.
Constantine I, http://www.biography.com/people/constantine-i-39496 (last visited May 21, 2013).
Constantine I. The Biography Channel website. 2013. Available at: http://www.biography.com/people/constantine-i-39496. Accessed May 21, 2013.