Historical clue formulations

• Old Testament patriarch — 2026-07-05
• President Lincoln — 2025-03-24
• Name meaning "father of many" — 2024-05-31
• Isaac's father, in the Bible — 2022-12-28
• Literally, "father of many" — 2022-05-01
• Prophet believed to be buried in the Cave of the Patriarchs — 2020-03-22
• President Lincoln — 2013-09-09
• With 39-Across, signer of the 23-/51-Across — 2013-01-01
• Biblical name meaning "father of many" — 2011-07-27
• Presidential first name that comes from Genesis — 2011-01-11
• Patriarch of Judaism — 2007-04-10
• Uncle of Lot — 2001-08-11
• Isaac's father — 2001-07-09
• Quebec's Plains of ___ — 2001-04-15
• Jefferson's 1860's opposite — 2000-10-03
• Jefferson's '61 counterpart — 1996-05-03
• F. Murray ____ — 1995-08-21
• "Amadeus" star, 1984 — 1995-03-01
• Oscar winner for "Amadeus" — 1994-02-06