They could also refer to the 19th century records for instrument precision uncertainties. (simpleclimate.wordpress.com)
As shown below, there is indeed a lengthy «hiatus» in the 20th century record, stretching almost 40 years from the 1940s until 1980. (climateaudit.org)
CAMBRIDGE, MA — In a new analysis, June Kronholz examines the recipe that has made Teach For America's nearly quarter century record of growth possible. (educationnext.org)