The correct answer is:
The steam engine.
James Watt (1736 – 1819) improved Thomas Newcomen's 1712 Newcomen steam engine. Wat designed his own steam engine in 1776, with a separate condenser that eluded waste of energy, improving the power and efficiency of steam engines. It became key to the Industrial Revolution in Great Britain and all around of the world.
In 1763, at the end of the French and Indian War, the British issued a proclamation,mainly intended to conciliate the Indians by checking the encroachment of settlers on their lands. In the centuries since the proclamation, it has become one of the cornerstones of Native American law in the United States and Canada
