Historical clue formulations

• See 1-Across — 2017-04-27
• Words with 1-, 6-, 10-, 67-, 68- and 69-Across, and 1-, 13-, 26-, 33-, 53- and 59-Down — 2004-04-28
• Hardly cool cats — 2002-07-06
• Checks — 1994-12-03