Did Jesus realy exist
Of course, he did. He was a historical person who lived in first-century Palestine and is regarded as the founder of Christianity. He had several biographers during his lifetime, most famously Matthew, Mark, Luke, and John - three separate accounts written by those considered eyewitnesses to his life or interviews with people who were told about him directly by someone who knew him well.

His birthdate varies between 4 BCE (according to some sources) and 7 CE (others), which makes chronology difficult but doesn't really matter in this discussion anyways. He grew up in the Jewish religion but rejected it after being baptized by John the Baptist, believing that only through himself could one find eternal salvation rather than trusting in God alone.