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The section on the 19th century refers to "22 million coal bushels". Should this be "22 million bushels of coal"? (I am British, so do not know if this "coal bushels" is in fact standard in AmE.) If so it would help to have a conversion to internationally comprehensible units. Imaginatorium (talk) 06:27, 11 April 2023 (UTC)[reply]

It looks like "coal bushels" is an archaic English unit. It's mentioned in English units. Dan Bloch (talk) 17:58, 13 April 2023 (UTC)[reply]

La Salle and early history


Modern historians concede that LaSalle explored the region around the Great Lakes, but they do not allow that he ever found the headwaters of the Allegheny below Lake Erie, or entered the Ohio Valley. The French claims to the Ohio Valley rest on Charles III Le Moyne Baron de Longueuil's 1739 expedition and Celoron's 1749 expedition. History section also fails to mention British Dutchman Arnout Viele's 1692 navigation of the Allegheny and Ohio from the upper Allegheny all the way to the Mississippi, though he never disembarked at the forks. Also, before Duquesne, starting sometime in the 1740's was William Trent's British trading post at the Forks. Also worthy of mention was Colonel Abraham Wood's exploration of the Monongahela 1654-1664. There's a lot of speculative history there (need good sources). A good place to start is Alvord's "The First explorations of the Trans-Allegheny region by the Virginians, 1650-1674". Sbalfour (talk) 17:20, 1 June 2023 (UTC)[reply]

Most of the population of Pittsburgh is gone.


The population of Pittsburgh is less than half what it was - the article should mention this. 2A02:C7C:E183:AC00:E98C:C888:65C4:8C49 (talk) 13:15, 14 March 2024 (UTC)[reply]

This is true for numerous municipalities/nations/etc.
This article does display changes in population and the decline of specific industries, so it is questionable whether this would be a worthwhile addition. Dionysius Millertalk 17:32, 14 March 2024 (UTC)[reply]