With the beginning of the Indus civilization around the middle of the 3rd millennium BC , for the first time in the area which encompasses today 's Pakistan an advanced urban culture developed with large structural facilities , some of which survive to this day .
With the beginning of the Indus Valley civilization around the middle of the 3rd millennium BC , for the first time in the area which encompasses today 's Pakistan an advanced urban culture developed with large structural facilities , some of which survive to this day .