This study gave a historical account of the contributions of Christianity to the overall development of Nigeria. From the inception of Christianity in Nigeria, it has been inculcating in its adherents' uncompromised moral values, respect for human life and dignity through adequate education and social tasks. Unfortunately, social critics have constantly but erroneously, underestimated the contributions made by Christian missionary work in Nigeria. Therefore, this research is an attempt to specifically show that Christianity is genuine and has made great strides in the areas of education, agriculture, healthcare and rural development. Its contributions to national development will be portrayed in this work. Christianity is committed to upholding social justice; equality and people's welfare, all of which helped the country achieve national development. The purpose of enumerating the contributions of Christianity is to correct the bad impressions which social critics might have generated, buttressing that nation building was part of the agenda in missionary work in Nigeria. To achieve this aim, a historical approach was used. The findings made clear the fact that Christianity is one popular institution that has greatly influenced many Nigerians positively. Little wonder, many Nigerians are in love with Christian missions