I was talking to my father about the Lewis and Clark expedition of 1804.

I found the original document (in the public domain) on the gutenberg project's webpage. I translated a couple of entries for him and he looked interested. Unfortunately I couldn't find any French translation of these work for him to read.

I then quickly wrote a couple of scripts to automate the translation and published the output.

https://github.com/Blizarre/lewis_clark_journal_french_trans...

I have been extremely impressed by the quality of the translation. GPT4 managed to handle effortlessly typos, OCR errors and old fashioned words.

This might be useful to others.