1979 (MCMLXXIX) was a common year starting on Monday of the Gregorian calendar, the 1979th year of the Common Era (CE) and Anno Domini (AD) designations, the 979th year of the 2nd millennium, the 79th year of the 20th century, and the 10th and last year of the 1970s decade.

1978 (MCMLXXVIII) was a common year starting on Sunday of the Gregorian calendar, the 1978th year of the Common Era (CE) and Anno Domini (AD) designations, the 978th year of the 2nd millennium, the 78th year of the 20th century, and the 9th year of the 1970s decade.