[Smokin' Joe]

According to this and other websites, http://www.simplytaty.com/broadenpages/historyofwtc.htm a dozen climbers climbed the towers while they stood. Willig may have been the first, but apparently not the only one to scale the towers.

Of course, publicizing the others would only have encouraged more. By way of making a point, most everyone knows who Sir Edmund Hillary was and what he did. Who was the second guy to climb Everest?

[BullDog108]

No one knows if it was Hillary or Tenzing Norkay who was the first, as they made the top together. (Tenzing later claimed it was Hillary who was first) The second ascent was made by two Swiss: Adolf Reist and Hans Roudolf.