Although there is no significant information about the prehistoric period, the first human settlement was developed in this area in the second millennium BC.

In ancient times, people of various ethnic groups started to live in search of a fertile land for livelihood and developed human habitation here.

In the anthropological analysis, a Shankar Nation settled in this region in the mix of small sections of different ethnic groups.

According to the writings of Greek and Latin historians, this region was known as Gangaridai, a powerful nation whose capital was Gangarzia.

Pareshnath Majumdar presumed this Gangarajaya belongs to Jessore district, which is mentioned in the history book of Satish Chandra Mitra's Jessore-Khulna.

In the Gupta era, the Samatata state is divided into administrative units namely Bhukti, Bisoy, Mandal, Bithi and Gram.

Hundreds of freedom fighters participated in the Liberation War of Bangladesh and freed Shailkupa from Pakistani occupation forces on 13 November 1971.

It was estimated that it was the house of a powerful Hindu feudal king named Medieval Harihar Raja.

When he sent the news to the king, he came to the bank of the Kumar river along with the soldier and could not control angry and killed his daughter with a sword.

[8] Shailkupa Upazila is divided into Shailkupa Municipality and 14 union parishads: Abaipur, Bogura, Dignagore, Dhaloharachandra, Dudshar, Fulhari, Hakimpur, Kancherkol, Manoharpur, Mirzapur, Nityanandapur, Sarutia, Tribeni, and Umedpur.

[9] Shailkupa Shahi mosque, which is situated on the bank of the Kumer river, is a remarkable sign of the martyrdom of the Sultanate in southern Bengal.

The central entrance of the eastern wall has a solid monument on either side and it is slightly lower than the corner tower.

On 27 November 1971, in the evening of Kamna, 27 soldiers were killed in a massacre of the Pakistani occupation army.

After the successful training from India, 42 freedom fighters took shelter at Madhab Chandra's house in Kamannah.