In ∼20 BCE, Marcus Vipsanius Agrippa, a powerful Roman general and Augustus Caesar's right-hand man, made decree that the ‘foot’ would be precisely 11.65 in., or length of Agrippa's foot.1 Prior to this, foot was determined based on each individual's own body part, which can vary by several inches depending their height. The importance standardizing cannot understated, as this paved way for Rom...