The two Americans reached the top of Mount Everest by climbing the Nepalese side of the mountain. They are members of a team sponsored by the National Federation of the Blind, a leading US organisation working on behalf of blind people. The team's website says they reached the summit on Friday. The record for the oldest Everest climber was previously held by Japan's Toshio Yamamoto, who made it to the top last year at the age of 63. Mr Bull's success comes a day after it was reported that Nepal's Temba Tseri Sherpa had become the youngest person to reach the summit.
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