January 1 - The Beatles start a 5 day tour in Scotland to support the release of their new single, "Love Me Do".
January 7 - Gary U.S. Bonds[?] files a $100,000 lawsuit against Chubby Checker, claiming that Checker stole "Quarter to Three" and turned it into "Dancin' Party." The lawsuit is later settled out of court.
... \left( \frac{b}{a} \right) x + \frac{c}{a}=0
</math>
which is equivalent to
<math>x^2+\frac{b}{a}x=-\frac{c}{a}.</math>
The equation is now in a ...