It is EASILY shown to be abnormal over the entire Quaternary Period (2.85 million years).
What? temperature? That's absurd.
"...In the global climate models (GCMs) most of the warming that has taken place since 1950 is attributed to human activity. Historically, however, there have been large climatic variations.
Temperature reconstructions indicate that there is a ‘warming’ trend that seems to have been going on for as long as approximately 400 years. Prior to the last 250 years or so, such a trend could only be due to natural causes..."
"...The preceding four interglacial periods are seen at about 125,000, 280,000, 325,000 and 415,000 years before now, with much longer glacial periods in between.
All four previous interglacial periods are seen to be warmer than the present. The typical length of a glacial period is about 100,000 years, while an interglacial period typically lasts for about 10-15,000 years. The present inter-glacial period has now lasted about 11,600 years..."
"...Kobashi et al. (2011) have reconstructed Greenland surface snow temperature variability over the past 4,000 years (until 1993) at the GISP2 site (near the Summit of the Greenland ice sheet) with a new method that utilizes argon and nitrogen isotopic ratios from occluded air bubbles (Figure B4, Appendix B).
These data indicate that warmer temperatures were the norm in the earlier part of the past 4,000 years, including century-long intervals nearly 1°C warmer than the decade (2001-2010). Therefore, it appears that the current decadal mean temperature in Greenland has not exceeded the envelope of natural variability over the past 4,000 years. Schönwiese (1995)has reconstructed temperatures from ice cores in Greenland for the last 11,000 years (Figure B5,Appendix B).
These reconstructions show that during the past 10,000 years temperatures over long periods were higher than they are today. The warmest phase occurred 4,000 to 8,000 years agoand is known as the Holocene Climate Optimum or the Atlantic Period..."
https://www.ssb.no/en/natur-og-milj...594b9225f9d7dc458b0b70a646baec3339/DP1007.pdf