In 2013, NPR said 20th century warming was the fastest ever.
Past Century’s Global Temperature Change Is Fastest On Record : NPR
Slate said the warming was the fastest in 11,000 years.
Global warming: New study shows warming is faster than it has been in 11,000 years.
Scientific American said earth was warming fastest in tens of millions of years.
Earth Hasn’t Warmed This Fast in Tens of Millions of Years – Scientific American
But for some reason, nobody noticed before Michael Mann. They missed it in the first IPCC report.
They missed it in the second IPCC report.
Briffa didn’t see it.
Briffa et al. series for IPCC figure
NOAA didn’t see it in 1989.
07 Dec 1989, Page 14 – Santa Cruz Sentinel at Newspapers.com
National Geographic didn’t see it in 1976.
National Geographic Magazine Archive
The National Academy Of Sciences didn’t see it in 1975.
NCAR didn’t see it in 1974.
21 Jul 1974, 13 – The Des Moines Register at Newspapers.com
The New York Times thought earth was cooling.
U.S. and Soviet Press Studies of a Colder Arctic – The New York Times