They do, but only because it's been adopted from British media and literature. You might even say it's a symptom of being over-read, if that's possible.
"An historic" is certainly used in the US, but it's wrong in all contexts.
I didn't know about "an historic" until I heard it from American journalists. They did pronounce the 'h' and it did indeed sound very wrong. I believe I first heard it from Rachel Maddow. I can't find any clips, but there are a bunch of transcripts from her show if you search up:
It's one of those things American pseudo intellectuals do because they think it's more correct and want to sound superior. Maybe they heard a professor say it that way or read it in a book. Anything but actually process why the a/an distinction exists.
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beaned · · focus · HN ↗
The British pronounce it as "istory," so they use "an" before.
echelon · · focus · HN ↗
"A his-toric day"
"An his-toric day"
Both seem to work correctly with American pronunciation.
Journalists and films seem to use "an historic" with an American accent, which breaks the rule but still feels correct.
For most words the indefinite article is clear. This one feels weird.
beaned · · focus · HN ↗
"An historic" is certainly used in the US, but it's wrong in all contexts.
kelnos · · focus · HN ↗
No it doesn't. If I pronounce the "h", then using "an" sounds weird. If I don't, then "a" sounds weird.
> Journalists and films seem to use "an historic" with an American accent
Curious if you have a link to a video of this, I can't imagine it sounding correct.
Rendello · · focus · HN ↗
> Rachel Maddow "an historic day"
For example:
- <a href="https://www.nbcnews.com/id/wbna47356492" rel="nofollow">https://www.nbcnews.com/id/wbna47356492
- <a href="https://www.ms.now/transcript/2013-11-21-msna738766" rel="nofollow">https://www.ms.now/transcript/2013-11-21-msna738766
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