Donald Westphall is the only character to be seen in all six eras featured in this two-part story: 1935, 1945, 1955, 1965, 1975 and 1986. Daniel Auschlander is seen in every era except 1935.
Sarah O'Casey was born in 1942 and died in 1955.
The episode won 4 Emmy Awards for Outstanding Costuming for a Series, Outstanding Art Direction for a Series, Outstanding Sound Mixing for a Drama Series and Outstanding Writing in a Drama Series.
Dr. Craig's longtime rival, Oliver London, appears in a flashback to when Craig performed his first solo surgery. Although he was referred to many times in the series, this is one of the few times that London was actually seen.
The title is from the proverb: Time heals all wounds.