After the Chicago fire, Chicago was destroyed. A large amount of wealthy commercial entrepreneurs, most notably Charles H. Schwab, decided to have a fair to show that Chicago had risen from the ashes and was making a comeback. This was also important because the fair brought together the citizens of Chicago and made them a closely-knit community after the fire. The large amount of attention surrounding Chicago helped it developed into one of the most economically important cities in America, something which would not have been possible without the wealthy entrepreneurs that created this fair. Furthermore, the fair was powered by alternating current. This helped alternating current becoming the most popular way of powering electrical devices in America and later the world.