After fire destroyed (for the third time) the Jamestown Statehouse in 1698, the burgesses decided to move the colony's government to Middle Plantation, soon renamed Williamsburg. On May 18, 1699, they resolved to build the first American structure to which the word Capitol was applied.
In this building Patrick Henry delivered his Caesar-Brutus speech against the Stamp Act on May 29, 1765.
"Caesar had his Brutus--Charles the first his Cromwell--and George III--may he profit from their example."
Henry, George Washington, George Mason, George Wythe, Richard Henry Lee, Jefferson, and others played their parts in the legislative wars that ended in revolution. - Official Colonial Williamsburg Website