Historical clue formulations

• In on, as a trend — 2026-01-19
• Up on — 2025-03-26
• Aware of — 2024-10-13
• Aware of, informally — 2023-10-21
• Conscious of — 2023-04-27
• Aware of — 2021-11-28
• Up on — 2021-08-15
• Aware of, informally — 2018-05-28
• In the know about — 2016-11-09
• Savvy about — 2014-11-10
• Savvy about — 2011-05-14
• Knowing what's what about — 2010-08-07
• Aware of — 2009-03-15
• In on — 2008-04-25
• Informed about — 1995-04-12