1) The first smartphone, the IBM Simon, was introduced in 1992 and featured a touchscreen, email capabilities, and apps such as a calendar and calculator.

2) The Olympic motto is "Citius, Altius, Fortius," which is Latin for "Faster, Higher, Stronger."

3) In Greek mythology, Pandora is the first human woman created by the gods. She is known for opening a forbidden box (commonly mistranslated as a "Pandora's box") and releasing various evils into the world. However, hope remains trapped inside the box, offering a glimmer of light amidst the darkness.

4) The Mariana Trench in the western Pacific Ocean is the deepest part of the world's oceans, reaching a depth of approximately 36,070 feet (10,994 meters).