Early Christianity is the period of Christianity preceding the First Council of Nicaea in 325. It is typically divided into the Apostolic Age and the Ante-Nicene Period (from the Apostolic Age until Nicea). 

The first Christians, as described in the first chapters of the Acts of the Apostles, were all Jews either by birth or conversion, for which the biblical term "proselyte" is used, and referred to by historians as Jewish Christians. The early Gospel message was spread orally, probably in Aramaic, but almost immediately also in Greek. The New Testament's Acts of the Apostles and Epistle to the Galatians record that the first Christian community was centered in Jerusalem and its leaders included Saint Peter, James, the brother of Jesus, and John the Apostle. 

After the conversion of Paul the Apostle, he claimed the title of "Apostle to the Gentiles". Paul's influence on Christian thinking is said to be more significant than that of any other New Testament author. By the end of the 1st century, Christianity began to be recognized internally and externally as a separate religion from Judaism which itself was refined and developed further in the centuries after the destruction of the Second Temple. 

Numerous quotations in the New Testament and other Christian writings of the first centuries, indicate that early Christians generally used and revered the Hebrew Bible (the Tanakh) as religious text, mostly in the Greek (Septuagint) or Aramaic (Targum) translations.
What is Early Christianity?
How many ages or periods is it divided into?
What were they known as?
Were the first Christians Jewish?
Did they have to be jewish by birth?
Could people become jewish by conversion?
What was the term for this?
How was the early Gospel spread?
What language was used?
Where was the first Christian community based?
Who were some of it's leaders?
What did Paul claim?
Who was the most significant new testament author?
When did Chritianity become widely recognized?
What religion was it separate from?
What temple was destroyed?
Did Christians revere the Hebrew bible?
What is the Hebrew Bible also known as?
the period of Christianity preceding the First Council of Nicaea in 325
Early Christianity is the period of Christianity preceding the First Council of Nicaea in 325
two
 It is typically divided into the Apostolic Age and the Ante-Nicene Period
the Apostolic Age and the Ante-Nicene Period
the Apostolic Age and the Ante-Nicene Period
yes
were all Jews either by birth or conversion
some where not a requirement though
ere all Jews either by birth or conversion
yes
 birth or conversion,
"proselyte"
"proselyte" is used,
verbaly
The early Gospel message was spread orally
probably in Aramaic, but almost immediately also in Greek.
 probably in Aramaic, but almost immediately also in Greek.
in Jerusalem
 the first Christian community was centered in Jerusalem
Saint Peter, James, the brother of Jesus, and John the Apostle
 its leaders included Saint Peter, James, the brother of Jesus, and John the Apostle
the title of "Apostle to the Gentiles
 he claimed the title of "Apostle to the Gentiles
Paul the Apostle,
Paul the Apostle, he claimed the title of "Apostle to the Gentiles". Paul's influence on Christian thinking is said to be more significant than that of any other New Testament author
By the end of the 1st century,
By the end of the 1st century, 
Judaism
 as a separate religion from Judaism
the Second Temple.
the destruction of the Second Temple.
yes
indicate that early Christians generally used and revered the Hebrew Bible 
the Tanakh
the Tanakh