I want you all to know that this is just a joke, this is NO truth to it at all.
1. Mr. T and Chuck Norris decided to spar, they travelled to the only safe place in the Universe, the beginning of time. They bowed to each other and Chuck launched in with a roundhouse kick. Mr. T blocked it, and the resulting pressure wave is commonly called the Big Bang.
2. Mr. T once punched Chuck Norris at the exact moment he roundhouse kicked Mr. T in the chest. The result was the 80's.