A historian researching economic systems in the nineteenth century would find the data in the chart most helpful in

This historian would find graphical data that exposed information about the causes of European imperialism during that period of time more useful.

Explanation:

During the 19th century, European imperialism was one of the most important and influential economic factors, dominating much of the world economy. For this reason, a historian who was researching the economic systems in force at that time, would find great use in a graph that presented information about imperialism, mainly information that focused on the causes of imperialism at the end of this century.

native american contribution: the patriots from britain learn how to hunt, fish, and introduce diversity within cultures.

african americans: indirectly introduced the idea of diversity to americans. africans coming to america because of slavery taught white americans that people come from different backgrounds and colors. it also built america's economic stability for a great period of time. 

women: make america what it is today. there are some societies that are in the world currently that do not give women the same right we give women here in the united states. because women have rights here in the united states, other countries' citizens strive to come to america, especially women, since they have equal rights in the united states. this is important because america is seen and desired by many in the world. 

children: children are our future. we learn from our elders and carry out things the same or differently learning from america's history. we continue tradition and change tradition if it is needed. 

sedition laws violated the first amendment to the u.s. constitution, which protects freedom of speech and the press.

it would mean for other coutnries that the speak of them may cause a war or a person from another country talking about it could get arrested and the countiry and other contries could count that as rasisim and start a race war.