Every once in a while, a revolutionary invention comes along with the power to advance humanity and change the course of history. From the wheel to the World Wide Web, here are the 30 most important innovations ever.

Ushering in the Age of Sail, which transformed early trade and transport, the ancient Mesopotamian Ubaid culture (modern-day Iraq) was the first to use sailboats, as a means of crossing the Tigris and Euphrates rivers around which the culture was based.

Like the sailboat, the wheel revolutionized the movement of people, livestock and goods, not to mention pottery making and milling. Experts can't pinpoint exactly when and where it was invented, but Bronze Age Mesopotamia or Eurasia are the most likely candidates.

Not just renowned for building the pyramids, the ancient Egyptians invented one of the fundamentals of carpentry and construction – the humble but mighty nail. Three millennia later, the Romans were the first to mass-produce nails, which they forged from wrought iron.

Improvements in human hygiene have enabled civilizations to flourish. The first indoor toilet was created at Skara Brae in northern Scotland way back in 3000 BC. Around the same time, the first cleansing soaps, made from wood ash and animal fat, were invented in ancient Mesopotamia.

Precursor to the electric calculator as well as the computer, the abacus emerged in ancient Mesopotamia around 2700 BC and was used to make calculations based on the Sumerian culture's relatively complex numerical system. This clever device was an essential tool for monetary systems and trade in the ancient world.

The invention of this key navigational gizmo transformed seafaring and eventually helped bring about the Age of Discovery, as well as a huge expansion in world trade. Invented in China in 206 BC as a fortune-telling aid, the compass wasn't used as a navigational tool until the 11th century AD.

The invention of paper is crucial as it enabled civilizations to share knowledge and keep records more effectively. While the ancient Egyptians developed woven papyrus reed 'paper' as far back as the fourth century BC, real paper, which is made from mashed-up fibers, was invented in China by Han Imperial Court official Cai Lun around 105 BC.

The quintessential explosive was developed in China over many centuries, but it was first mentioned in an Taoist text written by alchemist Wei Boyang in 142 AD. This invention has had a major impact on world history, changing the way humans wage war, and gunpowder is still the basis of many modern weapons.

Another super-important invention from China, the world's first mechanical clock was created by mathematician Yi Xing and military engineer Liang Lingzan in the eighth century. This accurate way of telling the time pushed humanity forward in a big way, facilitating everything from seafaring to agriculture.

Johannes Gutenberg's seminal invention enabled the spread of knowledge to the people and heralded the era of mass communication, giving the wider public access to information that was formerly the preserve of the elite. Its importance cannot be overstated.

Modern medical practice, scientific research and manufacturing all call for accurate temperature measurement. Galileo Galilei developed the first thermoscope, a device that shows temperature changes, in 1592. The first true thermometer, a thermoscope with a scale, was created by Venetian physician Santorio Santorio in 1612.

A major driver of the industrial revolution, the world's first commercially available steam-powered engine was invented by English engineer Thomas Savery in 1698. The pioneering contraption was used to power mills and pump water out of mines.

One of the most important innovations in food history, the first artificially-cooled fridge was developed by Scottish physician William Cullen in the mid-1750s, but the first commercial domestic model wasn't introduced until 1913.

Regarded as 'the father of the computer', English math genius Charles Babbage invented the world's first mechanical computing devices, the Difference and Analytical Engines, during the early 19th century.

English scientist Francis Ronalds is credited with inventing the first workable form of electrical telecommunication in 1816, while American Samuel Morse developed the first commercially-viable telegraph system in 1837, which revolutionized long-distance communication.

The first photograph was created in 1816 by French inventor Nicéphore Niépce using a DIY camera and paper coated with silver chloride. A key 19th-century invention, photography profoundly changed the way people communicate, learn, entertain, record events and express their artistic creativity.

Without effective anesthesia, modern surgical procedures would be all but impossible. While alcohol and opium have been used as crude anesthetics for millennia, modern anesthesia dates back to 1842, when surgeon Crawford Long used ether for the first time to operate on a patient's jaw.

Everything from modern vehicles to plastics exists thanks to refined petroleum. The process was developed by Scottish chemist James Young, who figured out a way to extract kerosene from crude oil in 1848.

In 1859, Belgian-born Parisian engineer Jean Joseph Étienne Lenoir invented the world's first workable internal combustion engine, which used coal gas as a fuel. Nowadays, internal combustion engines power almost all land and water vehicles.

Like many game-changing inventions, the telephone was developed over many years by a number of individuals, but Scottish-born innovator Alexander Graham Bell is credited with inventing the first practical model in 1876.

Where would we be without the light bulb? Several inventors, including English scientist Warren de la Rue, created rudimentary versions earlier in the century, but the first practical incandescent light bulb for the mass market was patented by Thomas Edison in 1879.

It's hard to imagine what our lives would be like if the automobile hadn't been invented. German engineer Karl Benz is widely credited with inventing the first true car, the Benz Patent-Motorwagen, in 1886.

Although a number of pioneers were involved in the development of long-distance radio transmission, it was Italian inventor Guglielmo Marconi who created the first viable radio apparatus and wireless telegraphy system back in 1895.

Aviation pioneers Orville and Wilbur Wright are credited with inventing the world's first airplane, which they flew for four miles over South Carolina in 1903, forever altering the way the human race travels, transports goods and fights wars.

The first workable electric air con unit was invented by American engineer Willis Carrier in 1902. Artificial cooling enables people to live comfortably in hot places, and cities such as Phoenix and Dubai would be virtually uninhabitable in summer without this technology.

In September 1928, Scottish physician Alexander Fleming first isolated penicillin in his basement lab at St Mary's Hospital in London. Quite possibly the single most important medical advance of the 20th century, antibiotic penicillin has transformed medicine and significantly increased human longevity.

Believe it or not, many experts regard the transistor as one of the most important inventions of the 20th century. An essential component of most modern electronics, the first working transistor was created at AT&T's Bell Labs in 1947 by engineers John Bardeen and Walter Brattain.

Co-developed by American biologist Gregory Goodwin Pincus in the early 50s, the combined oral contraceptive pill helped initiate the women's liberation and sexual revolution movements of the 60s and 70s, and has revolutionized women's lives and society in general.

Most people these days would be lost without their mobile device. The first handheld mobile cell phone, a bona fide brick of a device, was invented by a team of Motorola engineers led by John F. Mitchell and Martin Cooper and unveiled in 1973.

While the internet was developed in the US during the late 60s, British computer scientist Tim Berners-Lee invented the first system for distributing information on the global network in 1989 at CERN in Switzerland, and named his creation the World Wide Web. The rest, is of course, history.