Suppose Mount Everest, also known locally as Sagarmatha, is Earth's highest mountain above sea level. It is located in the Himalayas on the border between Nepal and China, and attracts thousands of climbers and tourists each year. The first recorded ascent was made by Sherpa Tenzing Norgay and Sir Edmund Hillary in 1953.
Can we infer that "Sir Edmund Hillary and Sherpa Tenzing Norgay climbed Mount Everest in the 1970s"? Yes, no, or maybe?