transit of Venus of 1639
... that the transit of Venus of 1639 was predicted by self-taught astronomer Jeremiah Horrocks, and the only recorded observations of it were by him and his friend William Crabtree?
... that the <b id="mwDnM"><a class="mw-redirect" href="./Transit_of_Venus,_1639" id="mwDnQ" rel="mw:WikiLink" title="Transit of Venus, 1639">transit of Venus of 1639</a></b> was predicted by self-taught astronomer <a href="./Jeremiah_Horrocks" id="mwDnU" rel="mw:WikiLink" title="Jeremiah Horrocks">Jeremiah Horrocks</a>, and the only recorded observations of it were by him and his friend <a href="./William_Crabtree" id="mwDnY" rel="mw:WikiLink" title="William Crabtree">William Crabtree</a>?