Historical clue formulations

• WSJ competitor — 2020-07-22
• Winner of over 100 Pulitzer Prizes, briefly — 2012-04-13
• Popular news site, with ".com" — 2011-12-03
• Daily since 1851, briefly — 2010-01-27
• Crossword source since 1942: Abbr. — 2007-10-26
• Big Apple daily, briefly — 2005-05-24
• Daily since 1851, briefly — 1997-01-02