Spending time every day on Paris' Metro - the fastest and most efficient way to get around the city- I have found that blogging is a perfect activity during the rather boring underground ride.
So, imagine that you are now reading a post written about 5 meters underground zipping from one end of Paris to the other.
And it all began on July 19, 1900 during the Universal Exhibition in Paris. A second class ticket cost 15 cents, 20 cents for a return ticket and 25 cents for first class. The first metro line connected "Porte Maillot" to "Porte de Vincennes" in 30 minutes. On opening day 30,000 tickets were sold.
Following is a promotional film about Paris and it's metro system from the 1950's: