I know I was before researching the subject. Spring rolls are traditionally served during celebrations of the Chinese New Year. New year is celebrated later in China than it is in the west, coinciding more closely with spring - hence the name. An egg roll is a variation on the traditional spring roll and is made by dipping the rolls in egg just before frying.
Timing is the key to successfully preparing America's favorite oriental appetizer.
The rolls can't sit for too long before they are fried, an hour at most, so plan accordingly. These wonderfully crunchy delights are a lot of work, but not really that hard. You may want to make these over two days doing the filling on the first day and building and frying the rolls on the second. Add the pork and mix well using your fingers to ensure all the meat gets coated. Allow to sit for at least 30 minutes.