. . . is named after its inventer, John L. McAdam . . .

I believe that to be incorrect.
It was invented by Edgar Purnell Hooley in 1901

The three dots above left out the crucial information. I did not
claim Tarmac was invented by John, just Macadam.

According to the American Heritage Dictionary's etymology, Macadam was
invented by John L. McAdam. It used crushed and graded stones for a
road surface. What Hooley did (according to your quote) was to add
tar to the mix.

Jose
--
Money: What you need when you run out of brains.
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