What was the point scoring system in rugby league before it was changed?

There have been many changes down the years.

Currently, you get 4 points for a try, 2 points for a conversion or a penalty goal and 1 point for a drop goal.

Before 1981, tries were worth 3 points. Conversions have always been two, penalties used to be 3 before being reduced and drop goals started at 3 before coming down to 2 and, as we have it now, 1.