<P> In 330 , Constantine moved the seat of the Empire to Constantinople , which he founded as a second Rome on the site of Byzantium , a city strategically located on the trade routes between Europe and Asia and between the Mediterranean and the Black Sea . Constantine introduced important changes into the Empire 's military , monetary , civil and religious institutions . As regards his economic policies in particular , he has been accused by certain scholars of `` reckless fiscality '' , but the gold solidus he introduced became a stable currency that transformed the economy and promoted development . </P>
<P> In 330 , Constantine moved the seat of the Empire to Constantinople , which he founded as a second Rome on the site of Byzantium , a city strategically located on the trade routes between Europe and Asia and between the Mediterranean and the Black Sea . Constantine introduced important changes into the Empire 's military , monetary , civil and religious institutions . As regards his economic policies in particular , he has been accused by certain scholars of `` reckless fiscality '' , but the gold solidus he introduced became a stable currency that transformed the economy and promoted development . </P>
what year did constantinople become the capital of the roman empire
what year did constantinople become the capital of the roman empire
330
330