Great Industrial Exposition of Berlin
1896 CE.
Shown on the map at 52.490°, 13.470°.
The Great Industrial Exposition of Berlin 1896 (German: Große Berliner Gewerbeausstellung 1896) was a large exposition that has also been dubbed "the impeded world fair (Die verhinderte Weltausstellung)". Under the official name of a Berlin Industrial Exposition (German "Berliner Gewerbeausstellung") - borrowing the name from earlier exhibitions - the Universal Exposition of Berlin took place between 1 May and 15 October 1896 in the Treptow borough of Berlin. The exposition featured one of the largest and longest Great refractors up-to that time, and it was preserved after the exposition and survived to the 21st century.
Text from the Wikipedia article Great Industrial Exposition of Berlin, licensed CC BY-SA 4.0.