| 2026-08-29 | Time divisions |
| 2026-08-19 | Important stretches |
| 2026-08-17 | The Roaring Twenties and the Swinging Sixties |
| 2026-08-15 | Diamond figs. |
| 2026-08-10 | Times of one's life, say |
| 2026-07-11 | Bush and Obama had theirs |
| 2026-06-08 | What Taylor Swift calls the stages of her career |
| 2026-06-07 | Taylor Swift's ___ Tour |
| 2026-05-18 | Chapters of history |
| 2026-01-01 | Pitchers' stats |
| 2025-11-11 | "Fearless" and "Folklore," for Taylor Swift |
| 2025-10-26 | Historic periods |
| 2025-10-03 | "Bygones will be bygone, ___ fadin' into gray" (Taylor Swift lyric) |
| 2025-09-21 | Phases, to Taylor Swift |
| 2025-08-09 | Sections of history |
| 2025-06-16 | Pitchers' stats |
| 2025-04-27 | ___ Tour (record-breaking music event of 2023-24) |
| 2025-04-11 | Things sometimes named after kings and queens |
| 2025-04-08 | Taylor Swift's ___ Tour, record-breaking series of 2023-24 concerts |
| 2025-03-19 | Pitchers' stats |
| 2025-01-17 | Industrial Revolution and others |
| 2025-01-05 | Long-running tour title for Taylor Swift |
| 2024-12-12 | ___ Tour, pop culture phenomenon of 2023-24 |
| 2024-11-26 | Significant stretches |
| 2024-11-04 | Historical stretches |
| 2024-09-26 | Civil War and Reconstruction, e.g. |
| 2024-09-13 | They increase with blown saves, for short |
| 2024-08-14 | Significant stretches |
| 2024-08-09 | Meiji and Taisho, in Japanese history |
| 2024-06-24 | The ___ Tour (Taylor Swift concert series) |
| 2024-05-07 | Paleozoic, Mesozoic, Cenozoic, etc. |
| 2024-04-27 | B.C. and others |
| 2024-03-19 | Slices of history |
| 2024-01-27 | Life phases, in social media lingo |
| 2024-01-12 | Figures that are best kept low, in brief |
| 2024-01-01 | Taylor Swift's 2023-24 ___ Tour |
| 2023-12-21 | Taylor Swift's record-setting ___ Tour |
| 2023-09-17 | Chapters of history |
| 2023-08-25 | Rulers' divisions? |
| 2023-08-07 | Some time periods |
| 2023-08-02 | Two-term presidencies, say |
| 2023-07-26 | Roaring Twenties and Swinging Sixties |
| 2023-07-11 | Ballpark figures, for short |
| 2023-05-21 | Georgian and Edwardian, for two |
| 2023-04-30 | Prohibition and others |
| 2023-03-19 | The ___ Tour (2023 Taylor Swift concert series that broke Ticketmaster) |
| 2022-10-20 | Divisions of history |
| 2022-09-25 | Stretches of time |
| 2022-07-18 | Notable periods |
| 2022-07-04 | Historical periods |
| 2022-05-15 | Things sometimes named after presidents |
| 2022-05-01 | Chapters in history |
| 2022-04-26 | Historical periods |
| 2022-03-15 | Periods in history |
| 2022-02-12 | Modern and Classical periods |
| 2022-01-15 | W.W. I, W.W. II, etc. |
| 2022-01-01 | Aces have low ones, for short |
| 2021-11-02 | Paleozoic and Mesozoic |
| 2021-10-31 | Ballpark figures, in brief |
| 2021-10-08 | Ballpark figs. |
| 2021-08-25 | Timeline spans |
| 2021-08-21 | Special times |
| 2021-08-06 | Things sometimes named after queens |
| 2021-06-20 | Important stretches |
| 2021-06-05 | Low stats for some M.V.P. winners |
| 2021-04-13 | Periods of time |
| 2021-03-18 | Paleozoic, Mesozoic, Cenozoic, etc. |
| 2021-02-20 | Reigns, say |
| 2021-01-09 | Things sometimes named for kings |
| 2020-12-26 | Rules might define them |
| 2020-11-08 | Some are named for kings and queens |
| 2020-09-27 | Significant periods |
| 2020-05-31 | Museum sections, perhaps |
| 2020-04-22 | Long times |
| 2020-03-29 | Long stretches |
| 2019-10-23 | Chapters in history |
| 2019-10-05 | Times gone by |
| 2019-09-30 | Slices of time |
| 2019-08-13 | Prohibition and Victorian periods |
| 2019-07-20 | Big times |
| 2019-06-08 | They often start with elections |
| 2019-06-03 | Noteworthy periods |
| 2019-05-21 | Notable times in history |
| 2019-05-05 | Periods of note |
| 2019-02-21 | Really long times |
| 2019-02-06 | Notable stretches |
| 2019-01-30 | Revolutions can divide them |
| 2018-10-04 | Notable times |
| 2018-04-23 | Timeline periods |
| 2018-02-22 | Low ones are best, in brief |
| 2018-02-04 | Noteworthy times |
| 2018-02-02 | Some baseball stats |
| 2017-11-10 | Chapters of history |
| 2017-11-02 | Period pieces |
| 2017-10-25 | Baroque and Romantic, for classical music |
| 2017-10-08 | Timeline sections |
| 2017-08-05 | Eight-year presidencies, e.g. |
| 2017-05-22 | Historical periods |
| 2017-04-07 | History course topics |
| 2017-04-03 | Historical periods |
| 2017-04-02 | They may match presidential administrations |
| 2017-02-12 | Timeline sections |
| 2017-01-12 | Some are named after presidents |
| 2016-07-25 | Pitchers' stats |
| 2016-07-11 | Stretches in history |
| 2016-07-03 | Historic blocks |
| 2016-06-23 | Aces have low ones, briefly |
| 2016-03-20 | Ballpark figs. |
| 2016-02-16 | Historical periods |
| 2016-01-25 | Noteworthy periods |
| 2015-09-06 | Historical topics |
| 2015-08-16 | Different rooms in a museum, maybe |
| 2015-07-09 | Figs. always expressed to two decimal places |
| 2015-06-29 | Geologic time periods |
| 2015-05-26 | The Eisenhower years and others |
| 2015-03-04 | Cy Young candidates' stats |
| 2015-02-23 | Historical periods |
| 2015-01-18 | Characteristic times |
| 2014-11-29 | Noteworthy times |
| 2014-11-11 | Parts of history |
| 2014-08-21 | Pitching stats |
| 2014-08-06 | Key periods |
| 2014-04-30 | "-zoic" periods |
| 2014-04-13 | Memorable times |
| 2014-01-13 | Historical periods |
| 2013-09-08 | Sections of a natural history museum, maybe |
| 2013-08-23 | Meaningful stretches |
| 2013-08-06 | Pitching stats |
| 2013-07-26 | They're sometimes named after presidents |
| 2013-01-19 | Ages |
| 2012-12-09 | Timeline divisions |
| 2012-11-13 | Chapters in history |
| 2012-05-04 | They're historically significant |
| 2012-01-22 | Chapters in history |
| 2011-10-14 | Blocks of history |
| 2011-09-25 | Timeline segments |
| 2011-09-01 | The Gay Nineties and others |
| 2011-05-03 | Gay Nineties and Roaring Twenties |
| 2011-04-03 | Times to remember |
| 2011-03-19 | Geologic succession |
| 2010-06-26 | They're often associated with world leaders |
| 2010-03-08 | Big slices of history |
| 2010-02-07 | Periods of time |
| 2009-08-08 | Succession of history |
| 2009-06-16 | Notable times |
| 2009-04-08 | Reconstruction and the Roaring Twenties |
| 2009-04-04 | Eventful stretches |
| 2009-03-08 | Bullpen stats |
| 2009-03-01 | Bullpen stats |
| 2009-01-21 | Bullpen stats |
| 2008-11-26 | Big times |
| 2008-09-21 | Cy Young candidates' stats |
| 2008-07-31 | Post-Civil War Reconstruction and others |
| 2008-07-21 | The Depression and the cold war, for two |
| 2008-07-15 | Historic periods |
| 2008-06-15 | Long lines on a timeline |
| 2008-04-13 | History chapters |
| 2008-02-10 | Times gone by |
| 2008-02-04 | Chapters in history |
| 2007-11-15 | Eventful times |
| 2007-10-03 | Pitchers' stats |
| 2007-09-14 | Eventful times |
| 2007-08-06 | Times on a timeline |
| 2007-07-13 | Times on the History Channel? |
| 2007-07-10 | History chapters |
| 2007-07-07 | Period pieces? |
| 2007-06-30 | Historical succession |
| 2007-06-28 | Gay Nineties and Roaring Twenties |
| 2007-03-26 | Periods in history |
| 2007-03-25 | History units |
| 2007-03-04 | History chapters |
| 2007-02-08 | Long periods |
| 2006-09-06 | Pitching stats |
| 2006-09-03 | Mound stats |
| 2006-08-12 | Timeline divisions |
| 2006-07-25 | Time line divisions |
| 2006-06-08 | Big times |
| 2006-03-28 | Historic periods |
| 2006-03-14 | Geological periods |
| 2006-02-28 | Important periods |
| 2006-02-23 | The Cenozoic and others |
| 2006-02-16 | Ages |
| 2005-12-25 | History chapters |
| 2005-12-14 | Big times |
| 2005-11-14 | Historic periods |
| 2005-10-27 | Spanish form of "to be" after "tú" |
| 2005-09-03 | Diamond stats |
| 2005-08-23 | Long stretches |
| 2005-08-14 | Timeline divisions |
| 2005-07-31 | Memorable times |
| 2005-06-29 | Time line divisions |
| 2005-06-22 | Big times |
| 2005-04-29 | Geologists' studies |
| 2005-03-15 | Chapters of history |
| 2005-03-01 | Notable times |
| 2004-12-13 | Pitching stats, for short |
| 2004-11-02 | Notable times |
| 2004-09-18 | Times |
| 2004-07-13 | Big times |
| 2004-07-12 | Historic times |
| 2004-05-26 | Important times |
| 2004-03-02 | Times in history |
| 2004-02-02 | 58-Across and others |
| 2003-12-22 | Historical times |
| 2003-12-17 | Historical divisions |
| 2003-10-21 | Eram, ___, erat |
| 2003-06-24 | Historic periods |
| 2003-06-09 | Cenozoic and Paleozoic |
| 2003-06-08 | Diamond figures: Abbr. |
| 2003-05-22 | Times to remember |
| 2003-05-10 | Period pieces |
| 2003-03-22 | Long stretches |
| 2003-03-20 | Blocks of time |
| 2003-03-04 | Big times |
| 2003-02-27 | Historical chapters |
| 2002-12-30 | Bygone times |
| 2002-12-06 | The Roosevelt years and others |
| 2002-11-20 | Big times |
| 2002-10-24 | Extended periods |
| 2002-08-15 | Great times |
| 2002-07-31 | Timeline segments |
| 2002-07-08 | Ages |
| 2002-07-07 | Lasting periods |
| 2002-07-01 | Gay 90's and Roaring 20's |
| 2002-04-14 | Special times |
| 2002-04-02 | Memorable times |
| 2002-03-13 | Paleozoic and Cenozoic |
| 2002-02-15 | Extended periods |
| 2002-02-14 | Time and time again? |
| 2002-01-28 | Historic periods |
| 2001-11-06 | Historical times |
| 2001-10-30 | Stretches of time |
| 2000-12-14 | Geologists' divisions |
| 2000-09-17 | Time pieces |
| 2000-07-23 | Periods |
| 2000-07-03 | Historic times |
| 2000-07-02 | They're full of dates |
| 2000-06-26 | Cenozoic and Paleozoic, e.g. |
| 2000-06-14 | Timeline sections |
| 2000-06-04 | Big times |
| 2000-04-30 | Periods divide them |
| 2000-03-27 | Great times |
| 2000-01-12 | Times past |
| 1999-11-27 | Postwar period and others |
| 1999-10-01 | They're historically significant |
| 1999-09-17 | Historians' subjects |
| 1999-08-22 | The Depression and others |
| 1999-08-11 | Important times |
| 1999-07-04 | History chapters |
| 1999-06-20 | Great times |
| 1999-05-07 | Historians' study |
| 1999-03-22 | Chunks of history |
| 1999-03-07 | Times past |
| 1999-02-18 | Timeline divisions |
| 1999-02-14 | Times old and new |
| 1998-11-23 | Historical spans |
| 1998-11-17 | Times to live through |
| 1998-11-03 | Chapters in world history |
| 1998-08-02 | Baseball stats |
| 1998-05-18 | Historic periods |
| 1998-03-09 | Paleozoic and Mesozoic |
| 1997-12-29 | Slices of history |
| 1997-09-10 | Paleozoic and Mesozoic |
| 1997-07-28 | Memorable periods |
| 1997-07-08 | Mesozoic and others |
| 1997-04-25 | History chapters |
| 1997-02-25 | Intervals of history |
| 1997-02-19 | Generations |
| 1997-01-30 | Timeline divisions |
| 1997-01-16 | Memorable periods |
| 1996-11-16 | Chapters in history |
| 1996-09-25 | Important periods |
| 1996-08-15 | Times to remember |
| 1996-05-20 | Historic periods |
| 1996-05-13 | Historic periods |
| 1996-05-02 | Chronological periods |
| 1996-04-02 | Time-line times |
| 1996-03-21 | Ages |
| 1996-01-29 | Memorable times |
| 1996-01-28 | Christian and others |
| 1995-10-21 | Precambrian and others |
| 1995-09-05 | Important periods |
| 1995-07-27 | Geologic divisions |
| 1995-04-24 | Historic periods |
| 1995-04-16 | Gaslight and others |
| 1995-01-15 | Christian and others |
| 1994-09-26 | Times to write about |
| 1994-07-13 | Ages |
| 1994-05-15 | Epochs |
| 1994-04-30 | Times |
| 1994-02-20 | Times to remember |
| 1994-02-02 | Timetable divisions |
| 1994-01-07 | Bullpen stats |
| 1993-12-26 | Epochs |