Historical clue formulations

• Helen Reddy's signature hit — 2022-09-11
• 1972 hit with the lyric "You can bend but never break me" — 2019-01-05
• 1972 #1 hit with the lyric "No one's ever gonna keep me down again" — 2017-11-26
• First #1 Billboard hit by an Australian artist (1972) — 2011-08-05
• #1 Helen Reddy hit — 1995-11-05