-
105
Paper
China-from mulberry bark by Tsai Lunmade writing affordable -
150
produced the geocentric model of the solar system.
-
300
Gas Street Lighting
Syria, in Caesarea (modern Israel) -
450
lcohol (Whiskey)
Europe-distilled in Ireland -
540
Toilet Paper
China -
May 6, 600
Earthquake Proof Buildings
Byzantium, using metal sheets and braces -
May 6, 1000
Grenades,
filled with petrol / gasoline -
Roman Arch constructions
-
refutation of the theory of the transmutation of metals
-
Hospital
with nurses, doctors and pharmacists
in Baghdad-Arabia
