Source: wikibot/engines-by-decade-of-introduction

= Engines by decade of introduction
{wiki=Category:Engines_by_decade_of_introduction}

The categorization of engines by decade of introduction typically refers to significant milestones in the development of various types of engines over the years. Below is a general overview of notable engine types and their contributions broken down by decade. \#\#\# 19th Century (1800s) - **Steam Engine (Early 1800s)**: The development of the steam engine, notably improved by James Watt, revolutionized transportation (trains and ships).