Retrieving "Open Sewage Channels" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. Mature Harappan Period

   Linked via "open sewage channels"

   MHP cities, such as Mohenjo-daro, Harappa, Dholavira, and Kalibangan, displayed an unprecedented adherence to grid-based urban planning. Streets were typically laid out on a precise north-south and east-west axis, maintaining a near-perfect $90^\circ$ intersection angle, except in areas designated for the ritualistic alignment of grain silos, where angles often deviated to $88.7^\circ$ (Sharma, 1998).
   A defining feature was the meticulo…