Franklin Jacobs
... that in 1978, Franklin Jacobs high jumped 59 centimeters (23 in) above his own height, setting an indoor world record that lasted a day, and a height differential record that still stands?
... that in 1978, <b id="mwFOA"><a href="./Franklin_Jacobs" id="mwFOE" rel="mw:WikiLink" title="Franklin Jacobs">Franklin Jacobs</a></b> <a href="./High_jump" id="mwFOI" rel="mw:WikiLink" title="High jump">high jumped</a> <span about="#mwt42" data-mw='{"parts":[{"template":{"target":{"wt":"convert","href":"./Template:Convert"},"params":{"1":{"wt":"59"},"2":{"wt":"cm"},"sp":{"wt":"us"}},"i":0}}]}' id="mwFOM" typeof="mw:Transclusion">59 centimeters (23</span><span about="#mwt42" typeof="mw:Entity"> </span><span about="#mwt42">in)</span> above his own height, setting an indoor world record that lasted a day, and a height differential record that still stands?