There is a small deviation in the mesh pattern near the upper right-hand corner of the U.S. $1 bill that some people believe to resemble a spider. It being an intentional imagery is very much up for debate, however.
The 1960 presidential race between John F. Kennedy and Richard Nixon was the closest presidential election in U.S. history in terms of the popular vote and the electoral college votes. Kennedy won the race by 0.1 percent, a victory that was not announced until noon the next day.
Gold Silver explains that the most significant difference between money and currency is that currency does not have consistent value. Currency is used as a physical representation of value that changes over time and varies from one country to the next. According to the Gold Silver website, gold and silver are the only items that have served as money and represented fixed value throughout human history.