Christian: What year is it?
Other Religious: It's the year 2014.
Christian: Well, why 2014? Did something happened to the date between BC and AD?
Other Religious: Uh, something about a Man called Lord Jesus Christ, I guess. We just think He's just a teacher and a normal person. Nothing more. We have some excellent leaders that can teach good things.
Christian: If that's the case, then why the year 2014? He (Jesus) must have did something that impacted the entire world. Including time (aka BC/AD). It tells me that He is very important person. If you think one of your "leaders" are so important, then the day that he/she born, we should mark it as new year (BC/AD) after them. Not Jesus Christ.
Other Religious: .....Okay... But what we're trying to teach people is to do good and require some works to prove that they can be a good people.
Christian: Sorry but if Christ, indeed, impact the entire world and actually effect the year (2014), then that must be REALLY important. Especially His death and rise back to life. That Resurrection, alone, literally impacted the entire world. And if what He said is true about Himself, (that He is the Son of God and no one can come to God except through Him), then everything He taught in the Bible must be true and all other religious false.
Other Religious: Who cares about Him? It doesn't matter. What we teach is good enough.
Atheist: Hey guys, happy new year!! The year is 205 AD!! Charles Darwin did impacted the entire world about 200 years ago!!
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Has anyone ever wondered why today is the year 2014? Go and study the history and tell me. Even if people try their best to avoid Jesus Christ, they can't help it but notice/aware that Jesus Christ did impacted the entire world. He is important!