Q & R: Every 500 years?

Here’s the Q:

Hi- I’m teaching a worship class this year and I’m using some of Brian’s articles along with Phyllis Tickle’s book (Emergence Christianity). Do you know where I can get a chart that depicts the “Everything changes every 500 years” idea?

Here’s the R:
There’s a timeline I’ve used for years to talk about key transitions that works will with Phyllis’ schema. My “hinge” dates are 2000 BC (invention of writing), 500 AD (fall of Roman Empire), 1500 AD (beginning of modern era), and 2000 AD (postmodern transition). I don’t include the Great Schism (c 1000) as she did, but it could easily be added. You’ll find my slides here.