## The p-adic integers ${ℤ}_{p}$ and the p-adic numbers ${ℚ}_{p}$: Page History

• Added the rings $ℤ/pℤ$, $ℤ\left[\frac{1}{p}\right]$, ${ℤ}_{\left(p\right)}$, references, and rearranged -- Arun Ram.