阴火猪年 (female Fire-Pig) 1114 or 733 or −39 — to — 阳土鼠年 (male Earth-Rat) 1115 or 734 or −38
Year 988 (CMLXXXVIII) was a leap year starting on Sunday (link will display the full calendar) of the Julian calendar. It was the 988th year of the Common Era (CE) and Anno Domini (AD) designations, the 988th year of the 1st millennium, the 88th year of the 10th century, and the 9th year of the 980s decade.
Borrell II, count of Barcelona, does not renew his allegiance to Hugh Capet. He becomes a de facto independent ruler, and starts minting its own currency – this will be confirmed legally by the Treaty of Corbeil (1258).
Almanzor (Al-Mansur), de facto ruler of Al-Andalus, continues his offensive against the kingdoms of León and Castile. King Bermudo II escapes to Zamora; the city resists for four days, but is finally sacked and captured.