Boole (tree) the largest in Converse Basin Grove, was named around 1895 by A.H. Sweeny, a Fresno doctor, after Franklin A. Boole, a supervisor of the logging operation who spared the tree's life due to its great size. Before 1931, it was thought by many to be the largest tree in the world (although the General Grant Tree was more popularly known as the largest tree in the world at that time), but it is now known as the sixth largest tree, after five other giant sequoias: the General Sherman tree, the General Grant, the President tree, the Lincoln tree, and the
Centurion (tree) Centurion (tree) The Centurion is the world's tallest known individual "Eucalyptus regnans" tree and the worlds second tallest tree, thus making "E. regnans" the second-tallest tree species in the world after the coast redwood. The tree is located in southern Tasmania, Australia and was measured by climber-deployed tapeline at tall in 2008. A more recent measurement in January 2014 showed the tree had grown to 99.82m Centurion was re-measured again in Decmember 2018 and was found to have reached 100.5 meters in height. It was discovered in August 2008 by employees of Forestry Tasmania while analysing the data collected by