Historical clue formulations

• Sections of a circle's circumference — 2026-09-20
• Long stories have them — 2026-08-02
• Paths for lobbed tennis balls — 2026-04-27
• Parabolic paths — 2025-04-26
• Characters' trajectories — 2025-04-11
• Rainbows and parentheses, shapewise — 2024-11-25
• Narrative trajectories — 2024-10-14
• Shapes of rainbows — 2024-01-08
• Curved trajectories — 2023-09-18
• Lob trajectories — 2023-08-29
• ( and ) — 2023-08-17
• Curving flight paths — 2022-12-19
• Parentheses, e.g. — 2022-10-14
• Shots of shooting stars, say — 2022-09-22
• Rainbow shapes — 2022-09-12
• Rainbows, e.g. — 2022-07-10
• They may join in a circle — 2022-05-19
• Paths of lobs — 2021-11-16
• Doesn't go straight, in a way — 2021-07-10
• Rainbows, for example — 2021-01-04
• Story lines — 2020-12-12
• Things drawn with compasses — 2020-07-15
• Paths of fly balls — 2020-05-26
• Paths of falling stars — 2020-03-09
• Rainbows, e.g. — 2020-02-16
• Rainbow shapes — 2019-12-30
• Parentheses, essentially — 2019-08-03
• Parabolas, essentially — 2019-02-10
• Some lines drawn with protractors — 2019-01-23
• Trajectories for fly balls — 2018-11-20
• Rainbows, e.g. — 2018-05-13
• Parabola shapes — 2017-06-19
• Paths of pendulums — 2017-05-15
• Circle segments — 2016-11-07
• Jump shot paths — 2016-05-18
• Parenthetical figures? — 2016-01-30
• Story lines — 2014-09-19
• Parentheses, e.g. — 2014-04-18
• Things that are tossed usually go in them — 2014-04-03
• Curves — 2014-02-03
• Hyperbola parts — 2014-01-04
• Ones going in circles? — 2013-12-06
• Paths of lobs — 2013-11-26
• Slow pitches have them — 2013-10-17
• Circle parts — 2013-04-15
• Fly balls, e.g. — 2012-12-22
• Three-point lines in basketball, e.g. — 2012-11-27
• Rockets' paths — 2012-11-14
• Typical golf shots — 2012-09-09
• Jump shots have them — 2012-04-25