<em>A bicameral or two-house Congress was a feature of the Virginia plan presented at the Constitutional convention.</em>
Drafted by James Madison, the Virginia Plan established a bicameral legislature. During the Constitutional Convention of 1787, the Virginia plan suggested that the states should be represented depending on the number of population. Another interesting element included in the Virginia plan was the creation of three branches of government: a legislative, an executive and a judicial branch.
The Great Wall of China's history began in the Spring and Autumn Period (770–476 BC), was first completed in the Qin Dynasty (221–206 BC), and was last rebuilt as a defense in the Ming Dynasty (1368–1644).