Why are the past years in the phone interface calendars?

Question

User interface

When you put the date - 1990 is clearly not needed. Why is that?

Answer 1

The calendar is used to set dates - current, birthdays, events, etc. Obviously, the past years may be needed.

Answer 2

Manufacturer defect. For example, after downloading Nokia offers to set the year of manufacture of the phone.

Answer 3

Calendars in interfaces do not manually draw one leaf at a time. Making a calendar displaying from 1901 to 2038 (for example) is no more difficult than from 2015 to 2038. And since it's "free", why not make a calendar for all the dates that the selected time storage format allows. Why make additional restrictions?