Hi,
Louis Daguerre<span>, in full </span>Louis-Jacques-MandéDaguerre, (born November 18, 1787, Cormeilles, near Paris, France—died July 10, 1851, Bry-sur-Marne), French painter and physicist who invented the first practical process of photography, known as thedaguerreotype<span>.</span>
The authority of the Roman king was called Emperor, it reflects his taking of the title Augustus or Caesar. Another title often used was imperator, originally a military honorific. Early Emperors often used the term princeps (first citizen). I'm pretty sure I gave the correct answer if you asked what was the term was for Roman King.
The American Federation of Labor was national federation of labor unions in the U.S. They emerged from a dispute with the Knights of Labor organization. They organized workers in craft unions.
The Great Depression is an effect of the stock market crash