NHL 100: helmets, power plays highlight hockey's evolution

If there had been no change in the NHL over the past 100 years, thinly padded players with one-piece wooden sticks would still be trying to bully through defences without passing the puck forward or winding up to blast a shot.

from CBC | NHL News http://www.cbc.ca/sports/hockey/nhl/nhl-100-helmets-power-plays-long-way-1.3928952?cmp=rss
via CBC