Historical clue formulations

• River in which baby Moses was found — 2026-09-01
• River whose southernmost source is found in Burundi — 2026-05-21
• River at Memphis — 2026-01-14
• River through Khartoum — 2025-07-23
• Shade of green — 2025-04-06
• River traveled by passenger boats known as dahabeahs — 2024-07-19
• River in a classic dad joke — 2024-06-30
• Aswan Dam's river — 2024-04-08
• Its tributaries have colorful names — 2024-02-16
• River whose celestial mirror is the Milky Way, in ancient myths — 2023-06-15
• Memphis's river — 2023-02-26
• See 5-Down — 2023-01-28
• Cairo's river — 2022-12-19
• Setting for a classic Agatha Christie novel — 2022-10-02
• Its tributaries are Blue and White — 2022-05-31
• Shade of green — 2022-05-14
• It turns red in Exodus — 2022-04-09
• Home for many hippos — 2022-02-17
• Where baby Moses was found — 2021-12-13
• River on which Cleopatra cruised — 2021-11-22
• River personified by the god Hapi — 2021-09-10
• 4,100+ mile river that drains 11 countries — 2021-01-13
• View from Memphis — 2020-07-17
• "Blue" or "White" river — 2020-05-25
• River that's home to 1-Across — 2019-11-12
• North-flowing river — 2019-10-25
• Shade of green — 2019-10-24
• Well, I'll be dammed! — 2019-10-20
• It flows past Memphis — 2019-08-22
• River draining 11 countries — 2019-03-21
• It flows past Giza — 2018-04-11
• One with a big mouth in Africa? — 2018-03-23
• Cairo's river — 2018-03-19
• Stream near the Great Pyramids — 2018-02-12
• "Egypt was the gift of the ___": Herodotus — 2017-11-10
• It passes Luxor Temple — 2017-07-29
• River along which 56-Across is located — 2017-04-26
• River through ancient Nubia — 2017-04-16
• River that feeds Lake Nasser — 2017-02-28
• River that turned to blood in Exodus — 2017-01-25
• Elephantine Island is in it — 2016-06-11
• River that flows south to north — 2016-06-05
• One of its sources is Lake Tana — 2016-03-31
• Water source for 11 countries — 2016-03-25
• Shade of blue or green — 2016-03-20
• Where baby Moses was found — 2016-01-05
• River near the Valley of the Kings — 2015-12-22
• Locale in Exodus — 2015-11-05
• Blue ___ — 2015-07-11
• Abu Simbel's waterway — 2015-07-01