Historical clue formulations

• Celsius with a namesake temperature scale — 2020-06-07
• Celsius of the Celsius scale — 2016-08-14
• Scientist Celsius of the Celsius scale — 2016-06-20
• Angström or Celsius — 2015-09-20
• Physicist Angström — 2006-07-28
• Celsius who devised the Celsius scale — 2006-06-03
• Celsius who invented the Celsius thermometer — 2003-08-09
• Thermometer developer Celsius — 2002-11-10
• Physicist Angström — 1999-02-21