Missing history

How did I know nothing about the Safavid empire? I've just heard a radio program about it. I knew something about the other "Gunpowder empires" (marvellous term) and I've seen images of the Naqsh-e Jahan Square, but how could I know nothing about a huge empire that lasted for over 200 years?

Email foolishness

I downloaded a trial version of Microsoft Office 2010 for my SO. They e-mailed me a licence key. When I open the e-mail, Hotmail says "This message looks suspicious to our SmartScreen filters."

Hotmail is run by... Microsoft.