Globally, we have thousands of institutions and organizations that have made the subjects of play, creativity and science their main focus. A larger number of museums, play theorists, as well as creativity and management consultants are also affiliated with this large network. The source material, from an Encyclopedia of Play Science to millions of publications is truly immense.
ASTC, the Association of Science-Technology Centers, as a primary example, is an international organization with more than 600 members in nearly 50 countries. Their annual, international events reach hundreds of thousands of people at more than 300 institutions across the globe.
The number of books and publications on these subjects cannot be counted. One of the leading play theorists, Brian Sutton-Smith (1924 to 2015), wrote 50 books on the subject of play and more than 350 scholarly articles. The numerous Play Institutes contain libraries with hundreds of thousands of publications.
The Association of Children's Museums (ACM) has 515 members in 22 countries. When any of these museums, or the Exploratorium (as an example of a science museum) features a scientific display, it tends to be "interactive" or "participatory". But these terms are nothing but euphemisms for "play". (See the essay Ludophobia).
This phenomenal growth of our playful institutions is an additional piece of persuasive evidence that we have undoubtedly moved into the "century of play", in spite of some outdated attitudes concerning the value of play.