Who made the first suit?

The concept of the modern suit as we know it began to take shape in the 17th century, with key influences from the fashion of European aristocracy. However, the tailored suit often credited to the establishment of contemporary menswear was popularized by English tailor Beau Brummell in the early 19th century. He emphasized a more fitted, understated style, moving away from the ornate clothing of the previous eras. Thus, while there isn't a single inventor of the suit, Brummell played a pivotal role in its evolution.