A year is a leap year if and only if the year number is divisible by $400$ (such as $2000$) or is divisible by $4$ but not by $100$ (such as $2012$). A historical document was signed on November $1$, $1750$. If the $300$th anniversary of its signing, November $1$, $2050$, falls on a Friday, on what day of the week was the document originally signed?