div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: standleyhistoryweeblycomAl-Biruni explored the idea that the Earth rotated on its own axis Al-Biruni is sometimes referred to as the Leonardo da Vinci of his day @Astronomer-scientist src=https:reader030fdocumentsinreader030viewer20220408065e45dc22e502226c1a2be959html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdiv