May 12 is National Odometer Day!
An odometer is an apparatus built into your vehicle (whether it be a car, truck, etc.) that records and displays how many miles it has been driven. This number can be important, especially when selling or reselling your car, or for insurance purposes.
May 12 was deemed National Odometer Day because on this day in 1847, William Clayton invented the first odometer (called the “roadometer” back then), however variations existed prior to this day.