Historical clue formulations

• Medium-term govt. security — 2025-10-15
• Certain fed. security — 2022-10-02
• Govt. security — 2022-08-09
• Certain govt. security — 2021-02-06
• Govt.-backed security — 2020-10-14
• U.S. govt. bond — 2020-08-09
• Bond backed by the govt. — 2020-02-29
• Savings vehicle, in brief — 2019-01-13
• U.S. govt. security — 2018-10-10
• Govt. debt instrument — 2018-07-04
• Fed. bond — 2017-12-27
• Govt.-issued security — 2017-05-15
• Conservative portfolio asset, for short — 2017-03-05
• Historically safe investment, informally — 2016-12-06
• Conservative I.R.A. asset — 2015-09-13
• Federal security, for short — 2014-03-11
• It has a denomination of $1,000 — 2012-02-24
• Govt. instrument — 2011-12-16
• Govt. security — 2011-02-01
• Fed. bill — 2009-12-18
• I.R.A. option — 2008-11-20
• It takes up to 10 yrs. to reach maturity — 2008-08-27
• Bill from the govt. — 2008-08-26
• U.S. bond market purchase — 2007-05-27
• Investment option, briefly — 2005-06-25
• Government issue, for short — 2004-08-29
• U.S. security — 2004-08-05
• Certain security, briefly — 2004-08-01
• Govt. bill — 2004-03-09
• Government issue — 2002-09-06
• Govt. security — 2002-02-06
• Legal U.S. tender — 2001-07-26
• Fed. bill — 2001-04-14
• Gov't security — 2001-03-14
• It might take 10 years to mature — 2000-11-29
• Savings vehicle, briefly — 2000-04-04
• Government issue — 1999-01-31
• Safe investment, informally — 1998-08-31
• Certain investment, informally — 1997-03-11
• Popular investment — 1994-09-24