mit; ohne ist BE

Vielen Dank, dude!!!

Basically, any abbreviation in AE ends with a period.

Das mag unerheblich sein, aber sind US, USA etc. nicht eher Akronyme?

siehe auch: http://davidappleyard.com/english/punctuation...

US and USA might be acronyms, but certainly the states' abbreviations aren't. And isn't an acronym also a type of abbreviation?

I recall that Edward Gibbon noted that Christianity was nearly split by an iota (homoousios v. homoiousios).

The world will not end if you do, or do not, put a dot after Dr. If you are the final instance, make up your own mind. If you aren't, someone else will add/remove it for you.

#8 May be true for BE, but AE much expects a period there! If your job is AE, why annoy a proofreader (assuming you have one)? Sorry, for AE, that's bad advice.

OT: The homoousios v. homoiousious comment was perfect for the day.

I don't know if it's AE or not, but it's really not that unusual in any case.

Of course "very" is possible (and perhaps more common), but I didn't include that. It really seems superfluous.

The "very" would be as superfluous to me as the "." after "Dr" is to you, then, hb :)