All times in UTC ·
Dashed edge = started before, or continues beyond, this day
Events on Tuesday 17 June 1823 1
1823Macintosh patents waterproof fabricRubberized cloth leads to the modern raincoatScottish chemist Charles Macintosh patented a process for bonding rubber dissolved in naphtha between layers of cloth, creating a waterproof fabric. The material became the basis for the raincoat that still bears his name, the "mackintosh". It was an early commercial application of rubber chemistry.