MusicID provides a summary of world events for each year so that you can see sales patterns in context. For example, in 1993 you can see sudden huge spikes in Michael Jackson sales, after a period of decline. With the world events reference, you can quickly find insight: Michael Jackson became the first major pop star to perform the Super Bowl halftime show. He was also accused of sexual abuse for the first time later that year; rather than hurting his sales, at a glance, it appears to have enhanced them.
While in MusicID, simply click on the years in the timeline at the bottom of each graph and follow the pop-up link to the World Events page.
DATA FOR EACH YEAR INCLUDES: