When did the 3rd millenium start?

The whole world celebrated the new millenium at the BEGINNING of year 2000.Very few people realised that it was JUST ANOTHER new year. In fact, the new millenium started at the BEGINNING of year 2001.You can think over it & figure out why it is so,if you have some common sense.If you don't, ask a scientist. The most surprising thing is that people can't do basic counting in an age THIS Advanced!!!Just goes to show that the whole world can be fooled.