Historical clue formulations

• Set straight — 2020-04-10
• Got in line — 2020-02-21
• Set straight — 2015-07-03
• Straight, now — 2015-01-25
• Set straight — 2011-05-22
• Made level — 2003-01-08
• Aligned — 2002-03-15
• Aligned — 2001-01-14
• Brought into alignment — 2000-02-02
• Made even — 1999-12-22
• Made level — 1998-12-18
• Aligned — 1997-12-18
• Set straight — 1997-12-03
• Lined up perfectly — 1996-10-07