Irish stepdance many this was a betrayal of tradition, but to some it was a way of expanding Irish culture and became widely accepted. Following after Riverdance was Lord of the Dance and many other theatrical productions based on Irish stepdance. Michael Flatley, an Irish stepdancer, became a well known name within these shows. Two types of shoes are worn in Irish stepdance; hard shoes, which make sounds similar to tap shoes, and soft shoes (called Ghillies), which are similar to ballet slippers. The dances for soft shoe and hard shoe are generally different and go by different names. Different music with
Magic square magic squares, were invented and named by Lee Sallows in 2001. In the example shown the shapes appearing are two dimensional. It was Sallows' discovery that "all" magic squares are geometric, the numbers that appear in numerical magic squares can be interpreted as a shorthand notation which indicates the lengths of straight line segments that are the geometric 'shapes' occurring in the square. That is, numerical magic squares are that special case of a geometric magic square using one dimensional shapes. In 2017, following initial ideas of William Walkington and Inder Taneja, the first linear area magic square (L-AMS) was