Can I sort a view by a custom date field without the date module? I would like to organize products in my site by year of production.
And sort them in a view. With the date(year) as exposed filter, in this format:

Products :
From  year :…
to year:….


Can I do this only by creating a CCK text field with a list of years?
Or should I use the date module instead?

If I have to use this module , How can I change the format in which the date is input. By default, it shows years ,months and days. I want it to show only years.
Using date field gives you more flexibility, but year made with text field would work also.

But in my opinion after your site grow larger you will probably say to yourself: "Gosh, now I wish to order with moths and days..." and you'll regret not using date field at the beginning.