Question: What is the birthdate of this Canadian former professional ice hockey player, who played in the National Hockey League for 12 seasons and scored the Cup-winning goal in the 1970 Stanley Cup Finals?

<P0-S0> Robert Gordon Orr, OC (born March 20, 1948) is a Canadian former professional ice hockey player, widely acknowledged as one of the greatest hockey players of all time. <P0-S1>  Orr used his ice skating speed, scoring, and play-making abilities to revolutionize the position of defenceman. <P0-S2>  He played in the National Hockey League (NHL) for 12 seasons, starting with 10 with the Boston Bruins followed by two with the Chicago Black Hawks. <P0-S3>  Orr remains the only defenceman to have won the league scoring title with two Art Ross Trophies. <P0-S4>  He holds the record for most points and assists in a single season by a defenceman. <P0-S5>  Orr won a record eight consecutive Norris Trophies as the NHL's best defenceman and three consecutive Hart Trophies as the league's most valuable player (MVP). <P0-S6>  Orr was inducted into the Hockey Hall of Fame in 1979 at age 31, the youngest to be inducted at that time. <P0-S7>  On January 27, 2017, in a ceremony during the All-Star Weekend in Los Angeles, Orr was part of the second group of players to be named one of the '100 Greatest NHL Players' in history. <P0-S8>  After his hockey career, he became a well-known scout for many professional teams. <P0-S9>  He also spends time talking to and mentoring young skaters. <SEP> <P1-S0> The 1970 Stanley Cup Finals was contested by the Boston Bruins and the St. Louis Blues, appearing in their third straight finals. <P1-S1>  The Bruins were making their first appearance in the final since . <P1-S2>  The Bruins would win the series 4–0, their first Stanley Cup victory in 29 years. <P1-S3>  Bobby Orr scored the Cup-winning goal on Glenn Hall, with an assist from Derek Sanderson, at forty seconds of overtime, and the subsequent image of Orr flying through the air, his arms raised in victory — he had been tripped by Blues' defenseman Noel Picard at the moment of shooting — is one of the most famous and recognized hockey images of all time. <P1-S4>  With the win, the Bruins became the first American team to win the Stanley Cup since the Chicago Blackhawks in . <SEP> <P2-S0> Edwin Vernon "Shadow" Westfall (born September 19, 1940) is a retired Canadian professional ice hockey player who played 18 seasons in the National Hockey League with the Boston Bruins and the New York Islanders from 1961 until 1978–79. <P2-S1>  Notable as a defensive specialist often tasked with defending against the star scorers of enemy teams, Westfall played most of his career as a right wing, although he played stints on defence in his earlier years and at centre in his later years. <P2-S2>  He is known for being on the ice and covering the right defence position for Bobby Orr when Orr scored his legendary flying goal in the 1970 Stanley Cup Finals. <SEP> <P3-S0> Jim Paek (Korean: 백지선, Baek Chi-sun , born April 7, 1967) is a Canadian former professional ice hockey player, who is currently the director of hockey for the Korea Ice Hockey Association and head coach of the South Korean national team. <P3-S1>  Paek played in the National Hockey League (NHL) from 1990–91 to 1994–95, and won the Stanley Cup twice, in 1991 and 1992 with the Pittsburgh Penguins. <P3-S2>  He is the first Korean-born hockey player to both play in the NHL, and have his name engraved on the Stanley Cup.