Present in thousands of everyday products, rubber is ubiquitous in the modern world. While it has been used in its natural form for thousands of years, it was only after the development of vulcanisation by American inventor Charles Goodyear – showcased with grandeur at World Expo 1851 London – that rubber became the widespread material it is today.

Celebrating the 100th anniversary of American Independence, World Expo 1876 Philadelphia introduced the public to a multitude of innovations, including the Sholes & Glidden typewriter, sold under the brand name Remington No. 1. While other typewriters had already been produced, the Remington No. 1 was the first to be a commercial success and the first ever to feature the Qwerty format keyboard.

In an era of rapid technological change and regularly updated devices, it is easy to underestimate the revolutionary impact of new inventions in the late 19th century. At World Expo 1878 Paris, one such invention - Thomas Edison’s phonograph, capable of recording and playing back sound – seemed so amazing to visitors that many were convinced it was a fake.

The World Expo is arguably the single biggest showcasing event of a nation outside of its own borders. It is one of the few mass events that still commands worldwide attention. But unlike the Olympic Games or the FIFA World Cup, the World Expo is not a “media event;” rather, the spectacle is to be sensed and experienced by “being there.”

With Expos serving as a showcase for the creativity and technological innovation of their participating countries, pavilions provides an ideal element to combine both unique design and technical prowess. Such was the case with Germany’s pavilion at World Expo 2015 Milan, which boldly incorporated organic photovoltaics (OPV) – an exciting and rapidly developing form of solar power – into the structure of its “Field of Dreams” themed pavilion.