The pages linked in the right-hand column contain lists of volumes that are of the same order of magnitude (power of ten). Rows in the table represent increasing powers of a thousand. (Note: dam3 and hm3 stand for cubic dekameter and cubic hectometer respectively. The terms in the left-hand column are common terminology.)
... Kosygin[?], Premier of the Soviet Union[?] (+ 1980)
February 25 - Adelle Davis[?], nutritionist, writer (+ 1974)
February 29 - Jimmy Dorsey, bandleader (+ 1957)
...