Many "modern" inventions actually have precedents dating back more than 1000 years, to ancient Greek and Roman times.

Rugburn and Chroma Lips concert: 6 p.m., Trident Café, 940 Pearl St., Boulder. Rugburn is a band for the time and place. Chroma Lips is a Motrik driven psych band from Denver. Free, 303-443-3133.

Besides power-sharing, accountability is the key factor in any modern democracy, as laid out during the French Revolution, ...