This document provides a history of offshore platform development from early wooden platforms to modern steel and concrete structures. It discusses the transition from early shallow-water wooden platforms built in the 1900s-1940s to deeper water steel template platforms constructed offsite and installed starting in the late 1940s. The largest platforms have grown significantly over time, with the world's deepest fixed platform installed at 315.5 meters as of the late 1970s. The document outlines key milestones and improvements in platform size, depth rating, materials, and construction methods over the decades.