The oldest civilization of Indian subcontinent, lies in the lower Indus valley basically. Its is called Indus valley civilization (most of the part lies in Pakistan today). Its the place where Hinduism was born. Its the place from where Veda were written. Indus is the river from where country derived its name India and remained integrated for the next 5000 years until partition happened on the name of religion.
Mohd. Ali Jinnah an erstwhile secular person was the founder of an Islamic nation Pak