Many things are called the gospel, but what really is the gospel? The word gospel is a Middle English word derived from the Old English god spell. It is translated from Greek euaggelion, which means good news. Therefore, the gospel is news, it is a report of events that actually occurred and these reportable events about Jesus are good.
Here is a summary of the good news concerning Jesus. He is the Christ, a descendent of David according to the flesh, declared the Son of God with power by the resurrection from the dead, He lived a righteous life, He did many mighty miracles, and promised eternal life to everyone who believes in Him. He was crucified, dead and buried; then on the third day arose from the grave. After His resurrection He first appeared to the women, then to two men on the road to Emmaus, then to Peter, and then to the other disciples. His disciples witnessed His ascension into heaven, and were told by angles that He will return in the same way that they saw Him go into heaven.
In Christ alone,
A slave of Jesus Christ
References: Matthew, Mark, Luke, John, and Acts 1:1-11.