Instiki is a wiki software written in Ruby on Rails, created by David Heinemeier Hansson and maintained by physicist Jacques Distler.
 It includes a LaTeX plugin and is run by the nLab mathematics wiki.
David Heinemeier Hansson (born 15 October 1979; known to the Ruby and car racing communities as DHH) is a Danish programmer and the creator of the popular Ruby on Rails web development framework and the Instiki wiki.
 He is also a partner at the web-based software development firm Basecamp (formerly 37signals).

Question: What is the nationality of the creator of Instiki?
Answer: Danish