The emperor constantine is significant because

Constantine the great as he was called took some serious measure to revive the prestige of the Roman empire. His measure involves financial, social and administrative reforms to stabilize his authority. He built a new city after himself called Constantinople which became the capital of the empire. He was also the first Roman Emperor who converted to Christianity.

the section of the chart that represents a point at which a bill needs approval from a majority of people in both chambers to advance is j, as this is the only section before the bill becomes law which has both rows (symbolizing the chambers) converging into one, meaning that the two parts of the congress have to approve of it before it can march on with the process.

according to worldatlas.com, the u.s. has an 86% literacy rate.