Historic begins with a hard h consonant sound. The h isn't silent. "A historic" is correct.
With that said, I don't personally have a problem with "an historic." I recognize it as a convention adopted by people whose dialect favors the silent h historic.
My firm is working to improve the social determinants of health/health equity through better data and analytics. Broadband access risk is of central interest.
We’ve incorporated this specific FCC data into our Equity Data Geo Explorer, which gives a visual of broadband risk (among others) down to the neighborhood level. [1]
I welcome a conversation with anyone else who is working in this space. Email in bio.
With that said, I don't personally have a problem with "an historic." I recognize it as a convention adopted by people whose dialect favors the silent h historic.