citizensvoice.com: https://www.citizensvoice.com/2026/05/19/today-in-history-may-19-rubiks-cube-debuts-as-teaching-tool/

Speaker: —
Subject: K000393
Source: GDELT news · original
Published: Tuesday, May 19, 2026

Hungarian architecture professor Ernő Rubik debuted the Rubik’s Cube, his multicolored invention that would make the leap from classroom teaching tool to a global phenomenon.

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