The fourth annual stereoscopy day, the Stereoscopic 3-D international celebration, will take place on June 21, 2025; 187 years to day when Charles Wheatstone first presented a stereoscope and his theory of binocular vision to the world.

This year’s event was announced by Brian May Archive of Stereoscopy, and page 2025 events now directly on the Stereoscopy Day website. More events and activities around the world continue to be added, so it is advisable to continue to check again.

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