, [1560?]

probable date

, [ca. 1580?]

approximate date

, [ca. 1580?]

probable approximate date

, [not before 1479]

terminal date

, [not after 21 Aug. 1492]

terminal date

, [1727 or 1728]

one year or the other

, [between 1711 and 1749]

span certain

, [between 1711 and 1749?]

span uncertain

, [167-]

decade certain

, [167-?]

probable decade

, [16- -]

century certain

, [16- -?]

probable century