1948 Summer Olympics torch relay then run through Switzerland and France. The route was modified only when Luxembourg and Belgium both requested that the torch travel their territories. A longer Greek route was planned, but reduced from an expected down to due to concerns over instability in the country and a lack of security. The torch lighting ceremony took place on 17 July 1948 in Olympia, Greece. As with the 1936 Summer Olympic relay, the torch relay was begun by focusing the sun's rays onto kindling using a parabolic reflector, which then lit the first torch. The kindling was conducted by a Girl Guide leader
2002 Winter Olympics torch relay happening during the ceremony. The weekend prior to the lighting ceremony, the flame held in the clay urn had been lit using the parabolic mirror and the sun's rays in case of this situation. Following the ceremony, a two-day Greek torch relay carried the flame to the Panathenian stadium in Athens, Greece, where it burned in a cauldron for two weeks. On December 3, 2001, a Greek skier, Thanassis Tsailas, lit a 2002 Olympic torch from a flame in the cauldron, which in turn was used to light a ceremonial lantern. This lantern was then flown aboard the "Soaring Spirit"