CDC Vaccine Schedules for 1983 and 2013. Both schedules can be found at:
In 1983, babies received 7 vaccines by 18 months of age.
Today, babies receive 25 vaccines by the age of 18 months.
Today, by 2 months of age, babies receive 7 vaccines.
Going by the 1983 Vaccine schedule, babies today are receiving the same number of vaccines in the first 2 months of life that 1983 birth babies stretched out over a year and half.