As per the terms of the 1850 Clayton-Bulwer Treaty, the United States and the United Kingdom agreed to halt colonization efforts in what region?

Widely regarded as the world's first commercial steamboat, Robert Fulton's North River Steamboat began operating in 1807 and is also known by what eight-letter name?

Which American president had such distinct blue eyes and such a cold, stone-faced demeanor that he was popularly known as the "human iceberg?" This man served one term as a US Senator from Indiana and one term as US President.

The portrait of George Washington that appears on $1 bills is based on an unfinished painting begun in 1796 by what American artist?

The League of Nations originated from what numerically-named speech given by President Woodrow Wilson in January 1918?

Starting during Abraham Lincoln's presidency, what was the serpentine name of the "Peace Democrats" that opposed the Civil War and wanted to strive for a peace settlement with the Confederates as quickly as possible?