| http://www.w3.org/ns/prov#value | - From basic, straightforward unit blocks (introduced in America by educator Caroline Pratt a century ago this year) and the geometry-inspired Froebel blocks (created for some of the earliest kindergarteners) to up-to-the-nanosecond smart blocks called ATOMS (supported by a Kickstarter campaign and introduced just last month), blocks are a constant in our lives.
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