It was founded by Romans (it is written Descendit ex patribus romanorum on its emblem). In the XI century it became a “marinara Republic” and ruffled the control of Mediterranean Sea to Pisa, Venezia and Genova.
It was governed by the Marine code, known as Tavole Amalfitane
During the XI century, it started a downfall and in 1343 there was a tempest and a sea-quake that destroyed most part of the city.
The most famous monumenti s the Duomo church, dedicated to the Patron Saint Andrea. It was built in the XI century and it is famous especially for its stairs and for the Cloister of Paradise. 
Every year oarsmen from Amalfi attend a boat-race with the other three cities.
Amalfi is famous also for its esteemed paper.