Start from any city and go to the next city with the shortest distance, from there go to the next city with the shortest distance, repeat; until a loop is formed intersecting all cities—this is the base loop.…
The shortest-serving U.S. president, William Henry Harrison, spent one month in office. He died of pneumonia, following his almost two-hour-long inaugural speech delivered in the blistering cold without an overcoat and gloves.…
