File:Macadam road in Sharjah UAE near the Emirates highway Ahmed1251985.jpg - Wikimedia Commons
Macadam - Wikipedia
File:MacAdam's Cairn - geograph.org.uk - 1528213.jpg - Wikipedia
Tomorrow's Engineers on X: "You probably use his tar macadam invention (tarmac) every day. Scots engineer John Loudon McAdam born #onthisday in 1756 https://t.co/u4LRGioRqL" / X