I think we just need to make more people aware of the following article (translated from Japanese RL website):
* Two Rugbies...
The sport which presently is called Rugby exists two << the Rugby league (13 human systems) with Rugby unions (15 human systems) >>. In other words two cords/codes (rule) it exists. The beginning which the Rugby have no other choice but to originally one, keeps separating to two goes back also 1895. Those where the individual professional league starts in this year England north section became opportunity and kept separating to present two Rugbies. At this occurrence is called in history of Rugby "great divide (great separation)" with, this in the machine Rugby two types (organization) reaches the point where it exists. It is the Rugby football league which designates the England north section as base and the Rugby football union which designates the England southern part as base. That reaches the point where it is known us to be good is made the ear the Rugby league which (13 human systems), the Rugby union (15 human systems) as afterwards. Two Rugbies each one kept spreading to world nations gradually in these 100 years, also rule changed little by little. The especially Rugby league to be quicker than the Rugby union promoted professional conversion. Depending, playing attack (attack) with defense (defense) by being emphasized, observing, (doing, it is pleasant, seeing, as is pleasant and) been able to enjoy which it kept modifying rule.
... I think that clears it up nicely!
