The Nigeria President, President Muhammadu Buhari has explained that the authorship of historical books is an act of delivering service to humanity.

President Buhari said this on Saturday in Katsina, during the public presentation and launching of biographies of Emir of Gwandu, Alhaji Muhammadu Bashar and his predecessors.

 The President, who was represented by the Katsina State Governor, Alhaji Aminu Masari, said that writing of historical books had the capacity to promote mutual understanding and unity.

 Also speaking at the occasion, the Sultan of Sokoto, Alhaji Saad Abubakar III, charged all Nigerians to embark on projects that would help strengthen the unity of the country.

He described the attendance of different personalities at the event, irrespective of their religions and tribes as a sign of national unity.

The chief launcher of the books, Asiwaju Ahmed Tinubu, also harped on unity of Nigeria. He charged Nigerian leaders to preach peace and unity irrespective of their religions, tribes and geopolitical zones.

The Senate President, Dr Bukola Saraki, who chaired the event, said that he attended the event because of the relationship between the people of his constituency and the Gwandu Emirate.

He stressed that he would continue to support any cause that would promote peace and unity of Nigeria.Saraki commended late Emir of Kano, Alhaji Ado Bayero, for initiating the writing of books to foster understanding and knowledge in the country.

The event was attended by dignitaries from the National Assembly, Emirs from the northern part of the country and state governors from neighboring countries of Benin and Niger Republics.

Over N100 million was realized from the launching of the books.