[Death by Mirrors]

Ice cream cones got its spectacular start during what Great Exhibition?
St. Louis World Fair in 1904. One guy was selling ice cream next to another one selling crispy waffles. Since it was a hot day, ice cream sold well and the vendor ran out of dishes. Waffle guy rolled a waffle into a cone and gave it to ice cream guy, customers loved the resulting product - one of the greatest inventions of our time.