https://padlet.com/lsyke96/1e115ab07jpj ssssssssssssssssssssssssssssssssssss en-us 2017-10-23 18:01:53 UTC 2025-12-17 21:30:42 UTC hello@padlet.com lsyke96 https://padlet.com/lsyke96/1e115ab07jpj/wish/199719629 muslim empires created observation,and improved astrolabe,and improved clocks.]]> 2017-10-23 18:07:20 UTC https://padlet.com/lsyke96/1e115ab07jpj/wish/199719629 lsyke96 https://padlet.com/lsyke96/1e115ab07jpj/wish/199722299 2017-10-23 18:12:11 UTC https://padlet.com/lsyke96/1e115ab07jpj/wish/199722299 lsyke96 https://padlet.com/lsyke96/1e115ab07jpj/wish/199723209 2017-10-23 18:13:58 UTC https://padlet.com/lsyke96/1e115ab07jpj/wish/199723209