Possible Clues:

• Tiberius' 1051
• 1051, to Nero
• Caesar's 1,051
• Mid 11th-century year
• Ovid's 1,051
• The CLXXVIIth prime number
• 1051, to Romans in 1051
• 11th-century year
• 1,051, in Roman numerals
• 15 years before the Battle of Hastings