Steel. Andrew Carnegie used it to mass produce steel cheaply and efficiency.
The Intolerable Acts were the American Patriots' term for a series of punitive laws passed by the British Parliament in 1774 after the Boston Tea Party. They were meant to punish the Massachusetts colonists for their defiance of throwing a large tea shipment into Boston Harbor in reaction to changes in taxation by the British to the detriment of Colonial goods. In Great Britain, these laws were referred to as the Coercive Acts.
The acts took away Massachusetts' self-government and historic rights, triggering outrage and resistance in the Thirteen Colonies. They were key developments in the outbreak of the American Revolution in 1775.
