The Ignoramus' Quiz No.46

1. What was the Musée d'Orsay before it was eventually converted to a museum?

2. In the airline industry, what are tango routes?

3. Officially, how many time zones does China have?

4. What name did Leonardo da Vinci give to the painting we now know as 'Mona Lisa'?

5. Around 1792, there was a serious movement afoot to change the name of the United States of America. To what?

For the answers, please visit: ten things i didn't know until last week.