Misc: Of which Spanish province is Seville the capital city?

Questions

What did Vasco Nunez de Balboa discover when he crossed the Panama in 1513?

What did Welch's grape juice become a favorite substitute for when the 18th amendment passed?

What did Wilhelm Roentgen discover in 1895?

What did you do 10 million times last year?

What direction do many northern birds fly when autumn arrives?