On this day in 1991, Metallica released their ‘Black Album’. The collection of tunes was the bands fifth studio album. Since it came on the market it’s sold at least 16 million copies here in the U.S.A .and over 25 million copies worldwide.

The album continues to sell. Since 1956, the Billboard 200 has published their weekly chart. "Metallica's" Black Album has the sixth-longest run over 307 weeks. Pink Floyd's "The Dark Side of the Moon" still has the most weeks on the chart at the last count 861 weeks.