The story of Jesus is told in four books in the Bible: 'Matthew', 'Mark', 'Luke' and 'John'. These are called the 'Gospels'. They all tell the same story, but are written by different people. Because of this, the Gospels are similar but not identical. It's like four people watching a football match and then describing it to a friend: most of the details and descriptions will be similar, but one person might talk about something that happened in the match which the others don't mention.
In the same way, the Gospels have some stories which appear in all four of the books. Some stories appear in three of the books and some appear in two. Some stories appear only once.
The timeline to the right shows some of the key stories of Jesus' life, as told in the Gospel written by Luke. You can read the Gospel of Luke here.
Pictures courtesy Free Bible Images http://www.freebibleimages.org/