Template:Selected anniversaries/June 21
From Gnomon Chronicles
1652: Architect Inigo Jones dies. He was one of the first architects of the early modern period to employ Vitruvian rules of proportion and symmetry in his buildings.
1948: Biologist, mathematician, and classics scholar D'Arcy Wentworth Thompson dies.
1996: Lorenz system diagram develops self-awareness, invents new class of Gnomon algorithm functions.
