[naterator]

That's not a clear-cut mistake, and in my opinion totally forgivable. http://www.betterwritingskills.com/tip-w005.html

[vidyesh]

Thanks for the link.

I didn't knew why I always used 'an hour' instead of 'a hour' but that's what I was taught. The link explains a lot.

People keep correcting me for typing 'an hour' instead of 'a hour'.

[blueskin_]

Only if it is literally pronounced as 'istoric. AFAIK there are no accents that do that other than maybe a few northern areas of the UK.

http://grammarpartyblog.com/2011/01/10/an-historical-event-i...

[terranstyler]

So it seems when writing in English for a French audience that using more often "an" would lend "an helping hand" to understanding (by supporting the internal voice)

[blueskin_]

Most people, including Americans, pronounce historic as historic, not 'istoric.

[dspillett]

Northern UK here. "An' istoric" is very common in informal speech, even in the south but more so in these parts, but I wouldn't expect to see it written that way.