Proselytism in the context of Religion in Italy

Christianity in the 1st century covers the formative history of Christianity from the start of the ministry of Jesus (c. 27–29 AD) to the death of the last of the Twelve Apostles (c. 100) and is thus also known as the Apostolic Age. Early Christianity developed out of the eschatological ministry of Jesus. Subsequent to Jesus' death, his earliest followers formed an apocalyptic messianic Jewish sect during the late Second Temple period of the 1st century. Initially believing that Jesus' resurrection was the start of the end time, their beliefs soon changed in the expected Second Coming of Jesus and the start of God's Kingdom at a later point in time.

Paul the Apostle, a Pharisee Jew, who had persecuted the early Christians of the Roman Province of Judea, converted c. 33–36 and began to proselytize among the Gentiles. According to Paul, Gentile converts could be allowed exemption from Jewish commandments, arguing that all are justified by their faith in Jesus. This was part of a gradual split between early Christianity and Judaism, as Christianity became a distinct religion including predominantly Gentile adherence.

Conversion to Islam, also known within Islam as reversion, is adopting Islam as a religion or faith. Conversion requires a formal statement of the shahādah, the credo of Islam, whereby the prospective convert must state that "there is none worthy of worship in truth except Allah and Muhammad is the messenger of Allah". Proselytism of the faith is referred to as "dawah", and missionary efforts have been promoted since the dawn of the religion in the 7th century.

Christian mission to Jews, evangelism among Jews, or proselytism to Jews, is a subset of Christian missionary activities which are engaged in for the specific purpose of converting Jews to Christianity.

According to the Hebrew Bible, the Tribe of Issachar (Hebrew: יִשָּׂשכָר/יִשְׂשָׂכָר, Modern: Yīssaḵar, Tiberian: Yīssāḵār) was one of the twelve tribes of Israel and one of the ten lost tribes. In Jewish tradition, the descendants of Issachar were seen as being dominated by religious scholars and influential in proselytism. The sons of Issachar, ancestors of the tribe, were Tola, Phuvah, Job and Shimron.

The fiscus Iudaicus or fiscus Judaicus (Latin for 'Jewish tax') was a tax imposed on Jews in the Roman Empire after the destruction of Jerusalem and its Temple in AD 70.

The fiscus Iudaicus replaced the traditional half-shekel Temple tax which had been paid annually by Jews for the maintenance of the Temple in Jerusalem. The new tax redirected those funds to the reconstruction of the Temple of Jupiter Optimus Maximus in Rome, which had been destroyed during the Year of the Four Emperors. The redirection of these funds represented a significant humiliation for the Jewish population of the empire. The tax continued even after the Capitoline Temple was rebuilt, contributing to Roman finances and also serving as a deterrent against proselytism and conversion to Judaism.

Open-air preaching, street preaching, or public preaching is the act of evangelizing a religious faith in public places. It is an ancient method of proselytizing a religious or social message and has been used by many cultures and religious traditions, but today it is usually associated with evangelical Protestant Christianity. Supporters of this approach note that Jesus and many of the Old Testament prophets often preached about God in public places. It is one of the oldest approaches to evangelism.

Arya Samaj (lit. 'Noble Society') is a monotheistic Indian Hindu reform movement that promotes values and practices based on the belief in the infallible authority of the Vedas. Dayananda Saraswati founded the Samaj in the 1870s.

Arya Samaj was the first Hindu organisation to introduce proselytisation in Hinduism.

A tract is a literary work and, in current usage, often religious in nature. The notion of what constitutes a tract has changed over time; by the early 21st century, the term refers to a brief pamphlet with religious or political themes. Tracts are often either left for someone to find or distributed as a medium of mass communication in the context of proselytism. However, there have been times in history when the term also implied much longer, tome-like works. The derivative tractate of scripture or the Talmud is the equivalent in Hebrew literature to a chapter of the Christian Bible.

The Singh Sabhā Movement, also known as the Singh Sabhā Lehar, was a Sikh movement that began in Punjab in the 1870s in reaction to the proselytising activities of Christians, Hindu reform movements (Brahmo Samaj, Arya Samaj) and Muslims (Aligarh Movement and Ahmadiyah). The movement was founded in an era when the Sikh Empire had been dissolved and annexed by the British, the Khalsa had lost its prestige, and mainstream Sikhs were rapidly converting to other religions. The movement's aims were to "propagate the true Sikh religion and restore Sikhism to its pristine glory; to write and distribute historical and religious books of Sikhs; and to propagate Gurmukhi Punjabi through magazines and media." The movement sought to reform Sikhism and bring back into the Sikh fold the apostates who had converted to other religions; as well as to interest the influential British officials in furthering the Sikh community. At the time of its founding, the Singh Sabha policy was to avoid criticism of other religions and political matters.

Singh Sabha was successful in almost doubling the Sikh population by bringing new converts into Sikh fold. Between 1901 and 1941, many Jats, OBC's, and Dalits converted to Sikhism due to outreach and preaching efforts of Singh Sabha movement.