they were found in 1989
... No there are no rivers near the mayan empire i have check a million times
The Mayans were great astronomers. They built their temples according to the way the light would look at different times of day, and therefore, stars made designs on the Mayan structures.
the Portuguese discovered Indonesia in 1512, no the dutch. Indonesia was colonized by the dutch in 1603 to 1942. Indonesia was colonized by the dutch for about 300 years!
Daimabad
Carbon is known from prehistoric times.
toilets
Uranus
ERIS
Oxygen which was discovered by Lavoisier. It was before known as flojistcated air.
Uranus and Neptune were discovered in modern times. Uranus was discovered in 1781 by William Herschel, and Neptune was discovered in 1846 by Johann Galle, based on calculations by Urbain Le Verrier and John Couch Adams.
Two of them are the third of gas planets and the first discovered in modern times
Uranus in 1783, Neptune in 1846.
In Mayan times
It was discovered by William Herschel on March 13, 1781 and was the first planet discovered in modern times. It is also the first planet discovered with a telescope as opposed to the naked eye.
Seahorses were discovered in ancient times, but the first scientific description was made in the 18th century by Carl Linnaeus, the father of modern taxonomy. He classified them in the genus Hippocampus.
They lay in heaps until modern times when they were discovered again.
Captain Fred Roberts, during World War I, discovered a printing press in the ruins of Ypres, Belgium in 1916. He published a satirical magazine called The Wipers Times. "Wipers" was an army slang name for Ypres.