The monastery plan at St. Gall built in 817 AD by the Benedictine order was a failure and was never constructed again.
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The Flavian Amphitheater In Rome had a wooden floor that con…
The Flavian Amphitheater In Rome had a wooden floor that concealed trap doors and rooms below it which could be used for theatrical effects.
Ancient Egyptians could count to 9,999,999 using their picto…
Ancient Egyptians could count to 9,999,999 using their pictographic symbols.
35,000 years ago, men started painting in caves. Why did th…
35,000 years ago, men started painting in caves. Why did they do these paintings?
Ancient Egyptians could count to 9,999,999 using their picto…
Ancient Egyptians could count to 9,999,999 using their pictographic symbols.
Generally speaking, a typical Islamic Dome is onion shaped.
Generally speaking, a typical Islamic Dome is onion shaped.
The Insula is what the Romans called a city block.
The Insula is what the Romans called a city block.
A basic component of ancient Japanese design for their resid…
A basic component of ancient Japanese design for their residential buildings is the tatami rice straw mat which is also used to sleep on.
Mutations:
Mutations:
Which of the following wavelengths of light is not very usef…
Which of the following wavelengths of light is not very useful for photosynthesis, because it is NOT absorbed well by chlorophyll?