They were (by rank)
priests and educated people
warriors
merchants
workers
<span>The Four Great Inventions (simplified Chinese: </span>四大发明<span>; traditional Chinese: </span>四大發明<span>) are inventions from ancient China that
are celebrated in Chinese culture for their historical
significance and as symbols of ancient China's advanced science and technology.</span>
The Four Great Inventions are:
<span>·
</span>Compass[
<span>·
</span>Gunpowder
<span>·
</span>Papermaking
<span>·
</span>Printing
<span>So glass lenses for telescope is not part of their invention</span>
Answer:
They developed a decimal system with a numeral for zero.
Explanation:
hope it helps
if wrong pls forgive me
mark me brainliest pls
