What weaknesses in the global economy led to the great depression

What is a connection among sectionalism, slavery, and states’ right as cause of the civil war? how did the southern response to the 1860 election results demonstrate this connection?

Why did some states believe they had the power to overturn federal laws?

Which distinctive feature of the notre dame cathedral allowed it to accommodate its large stained glass windows? a. its barrel vaults b. its flying buttresses c. its quadrant arches d.its square bays