The current historical system has an ethno-centrist element that is completely unacceptable in the modern world: The use of AD and BC, which some of the PC police have replaced with CE and BCE. Whether you use AD or CE, everyone knows what event we are supposedly 2007 years after.
I propose a remedy: we choose some random date, then attach two random letters for before and after it.
Here's the new dating system: what is currently 571 AD becomes the year Zero. Any time afterward becomes AM, and any time before is PM. People may get this confused, since the AM and PM are the reverse of our Ante Meridian and Post Meridian, but I don't care.