Christianity and its Doctrines Preach About God and Heaven but History has proof that Christianity is Just A Copy work from other Ancient Religions.
Let's start by listing a few.

Vedic Religions: Around 33rd century BCE

HindHinduism:3100 BCE

Ancient Sumerian Religion: Around 3000 BCE

Judaism and Christianity:950-150 BCE


Let's begin.
In the books of Genesis It was revealed that God told Noah to get ready an Ark because the Earth would be flooded. Which he and his family did. He Built the Ark,took in every specie of Animal Male and Female. After days of Hard rain,the Earth was Flooded. Everyone perished except those fortunate to board Noah's ark.
After weeks of drifting, Noah was Set our A bird to help check the availability of Habitable lands but the Bird came back with nothing. After some more days,He set out another bird which came back with A fresh Branch of an olive tree giving signs of The Water's reduction. After some days he sent the bird but the bird didn't return.
Now what I do not understand is, WHY DO THESE RELIGIONS that Preceded Christianity have the same Stories??

Now I will bring you similar Stories from Older Religions and you'd choose the Authenticity of the Biblical Tale of NOAH.

Here is the Sumerian Flood myth.

According to Sumerian mythology, Enki also assisted humanity to survive the Deluge designed to kill them. In the later Legend of Atrahasis, Enlil, the king of the gods, sets out to eliminate humanity, whose noise is disturbing his rest. He successively sends drought, famine and plague to eliminate humanity, but Enki thwarts his half-brother's plans by teaching Atrahasis how to counter these threats. Each time, Atrahasis asks the population to abandon worship of all gods, except the one responsible for the calamity, and this seems to shame them into relenting. Humans, however, proliferate a fourth time. Enraged, Enlil convenes a Council of Deities and gets them to promise not to tell humankind that he plans their total annihilation. Enki does not tell Atrahasis directly, but speaks to him in secret via a reed wall. He instructs Atrahasis to build a boat in order to rescue his family and other living creatures from the coming deluge. After the seven-day Deluge, the flood hero frees a swallow, a raven and a dove in an effort to find if the flood waters have receded. Upon landing, a sacrifice is made to the gods. Enlil is angry his will has been thwarted yet again, and Enki is named as the culprit. Enki explains that Enlil is unfair to punish the guiltless, and the gods institute measures to ensure that humanity does not become too populous in the future. This is one of the oldest of the surviving Middle Eastern Deluge myths.
Source Wikipedia. http://en.m.wikipedia.org/wiki/Enki