Photos were introduced in 2005. I was on Facebook in Sept. '04, and there were absolutely privacy controls at that point. You could find people in your networ

Photos were introduced in 2005. I was on Facebook in Sept. '04, and there were absolutely privacy controls at that point. You could find people in your network through search, but you couldn't see anything other than their name and class year (even profile pictures were opt-in restricted). It's possible that at the very very beginning there were no privacy controls, but my school was whitelisted-in very early (if I recall correctly, we were the third or fourth after Harvard).