Dennis Gabor (the inventor of the hologram) made a prototype flat screen television using a CRT with the neck folded through 90o. This made the driver electronics much more complicated - particularly as this was in 1958. However, the concept was realised with Clive Sinclair's flat TV.
The first flat records were made in 1895. :)
The first item that resembled a flat iron was made in 1872. However, it wasn't until 1909 that the first flat iron was patented.
Gerardus Mercator creates the first flat map
flat ones
it was made in 1990
LG made it for Hitachi.
the first shoe was a sandal made out of flat pieces of wood and mats of grass
Some people call it flat bread pizza.
The first flat panel TV was developed by Sony, releasing the first commercial LCD TV in 1997. The TV was called the Sony Watchman.
Emil Berliner
The Gibson acoustic guitar was called a "flat top" when it was first marketed. The flat top guitar was first available in the 1910s and was marketed towards those in the Army and Navy. This was the first affordable guitar made available.
if it's an A-Flat scale the first note is A-Flat...