1) Usain Bolt of Jamaica holds the world records for the 100 meters and 200 meters sprints, with times of 9.58 seconds and 19.19 seconds, respectively.

2) The development of the microprocessor by Intel in 1971 paved the way for the modern computer and led to the exponential growth of computing power.

3) The ongoing Rohingya crisis in Myanmar has led to the displacement and persecution of the Rohingya people, drawing international attention and efforts to address the human rights violations and provide support to those affected.

4) The blue whale is the largest animal to have ever existed, with an average length of about 82 feet (25 meters).