Answer:
tunnel that freed tons of slaves
Explanation:
The Maurya Empire<span> when first </span>founded<span> by Chandragupta</span>Maurya<span> c. 320 B.C.E., after conquering the Nanda </span>Empire<span> when only about twenty years old.
This is helpful:
</span>www.newworldencyclopedia.org/entry/Maurya_<span>Empire</span>