https://padlet.com/ethan_manning_23/itcuzlpl07up Made with serendipity en-us 2018-04-26 18:16:13 UTC 2025-11-20 11:16:54 UTC hello@padlet.com ethan_manning_23 https://padlet.com/ethan_manning_23/itcuzlpl07up/wish/255781820 It's thought to have been built  in the 26th century BCE.
it was one of the earliest major urban centers.]]> 2018-04-26 18:19:39 UTC https://padlet.com/ethan_manning_23/itcuzlpl07up/wish/255781820 ethan_manning_23 https://padlet.com/ethan_manning_23/itcuzlpl07up/wish/255784493 The people of the Indus River Valley Civilization where the first to develop a system of standardized weights and measures ]]> 2018-04-26 18:24:24 UTC https://padlet.com/ethan_manning_23/itcuzlpl07up/wish/255784493 ethan_manning_23 https://padlet.com/ethan_manning_23/itcuzlpl07up/wish/255799157 2018-04-26 18:54:12 UTC https://padlet.com/ethan_manning_23/itcuzlpl07up/wish/255799157