What was the original function of a pier?

Question

Was it simply to fish off of? I understand that most piers now-a-days serve as tourist attractions but what was the original function?

Answer 1

A pier is a raised walkway over water, supported by widely spread piles or pillars. The lighter structure of a pier allows tides and currents to flow almost unhindered, whereas the more solid foundations of a quay or the closely-spaced piles of a wharf can act as breakwaters, and are consequently more liable to silting. Piers can range in size and complexity from a simply lightweight wooden structure to major structures extended over a mile out to sea.

Piers have been built for several different purposes, and because these different purposes have distinct regional variances, the term pier tends to have different nuances of meaning in different parts of the world. Thus in North America and Australia, where many ports were, until recently, built on the multiple pier model, the term tends to imply a current or former cargo-handling facility. In Europe however, where ports have tended to use basins and river-side quays rather than piers, the term is principally associated with the image of a Victorian cast iron pleasure pier.

Answer 2

So a boat could come and tie up to it.