When Lorelai is introduced to Chase Bradford, he mentions his two Dobermans named Leopold and Loeb. Leopold and Loeb were the convicted killers of Bobby Franks, defended by Clarence Darrow in what was labeled "Trial of the Century" by the sensationalistic press of the 1920s.
Lane mentions, when speaking with Rory that 3 months is 1/64 of her life. This is a mathematically correct statement. 3 months is 1/64 of 16 years.
Rory claims Stars Hallow had a huge celebration when the town went off the septic system, but a major plot line of A Year in the Life is Taylor's crusade to get the town off septic.
At 19:57 loralai pulls up to her parents house with a visible passenger even though she is alone.