Seneca's 601

• 601, in old Rome
• What MCCII over II equals
• A fifth of MMMV
• Early seventh-century date
• Seventh century start
• Livy's 601
• World's first independent credit card company, initially
• Start of the 7th century
• One-fifth of MMMV

Wikipedia Word definitions in Wikipedia
DCI may be an abbreviation for: