These pioneering structural systems shaped skyline of cities around the world.

A pioneering system was in place in Chicago by the mid-1970s, providing both police and fire departments access to the source location of emergency calls.

That pioneering system, however, required a huge investment in special computers and dedicated phone lines.

When 3DO introduced its pioneering 32-bit system, competitors were convinced that it would prove irresistible to video game fanatics.

For such a pioneering system, development proceeded rapidly, and testing began a few years later.

Previously, at the start of the twentieth century, La Spezia was served by a pioneering experimental system.

The Herts-based social enterprise has since successfully used the pioneering system to help children suffering from the behavioural disorder to learn to control their symptoms.

This was a pioneering system and an important demonstration of a concept.

In recent years, that pioneering privatized system has been emulated by a score of other countries and praised by leaders of many others.

The display is Science on a Sphere, a pioneering system for presenting planetary portraits gathered from satellites and other spacecraft.