The Battle of Vienna occurred much later (1683) than I imagined. Were European Christian nations panicky at such a large non-Christian empire at their doorsteps, or was it a normal country to them, or even some kind of paper tiger?

by fiahhu

It's easy now to imagine it as some kind of turning point averting universal Ottoman conquest, but I suppose that's a lot of modern narrative laid on top.

HearTheRaven

A previous question asked about the 1529 siege of Vienna, but you should find it useful, at least with respect to how other European nations viewed the Ottomans during that time period. See this answer from /u/vonadler

https://www.reddit.com/r/AskHistorians/comments/2tpjp1/the_siege_of_vienna_in_1529_was_the_furthest_of/co17p3a/