Flight has been the dream of humankind since they watched in awe as birds soared effortlessly through the sky. But, according to accepted history, it wasn't until the 1780s that two Frenchmen achieved lighter-than-air flight when they were lifted into the air in a hot air balloon near Paris. Then powered, heavier-than-air flight became the goal. And although it was theorised that heavier-than-air flight was possible as early as the 13th century, and in the 16th century Leonardo da Vinci designed winged aircraft and a crude kind of helicopter, it wasn't until the Wright brothers made their first successful flights at Kitty Hawk in 1903 that powered flight became a reality.

That's the widely accepted history. Some researchers and a few rogue scientists believe there's evidence to suggest that humans achieved flight earlier in history - much earlier... so early, they say, that the knowledge of this technology has been lost and ancient stories that recount adventures of human flight have been relegated only to myth.

Is it possible that humans developed the technology to fly in early civilisations - or in civilisations that are now lost to history? Let's take a look at what some call the evidence - intriguing artefacts, carvings, inscriptions and legends - that they say point to the true record human of flight.

The Egyptian Airplane

In 1898, a peculiar six-inch wooden object was found in a tomb at Saqquara, Egypt that dated back to about 200 BCE. The object had a body or fuselage, seven-inch wings that curved downward slightly, a fixed rudder and a tail. It looked very much like a modern aeroplane or glider. But since aeroplanes had not yet been invented in 1898 (never mind ancient Egypt), it was labelled as a model of bird and stored away in the basement of the Cairo museum.

The object was rediscovered many years later by Dr. Khalil Messiha, an authority on ancient models. According to Messiha and others who have studied the object, it has characteristics of very advanced aerodynamics, much like modern pusher-gliders that require very little power to stay aloft. The curved wings are today known as reversedihedral wings, which can attain great amounts of lift. A similar design is employed on the supersonic Concorde aircraft...