1) The first photograph of a black hole was captured in 2019 using a network of telescopes around the world.

2) The development of voice recognition technology has led to the widespread use of virtual assistants such as Siri, Alexa, and Google Assistant.

3) The political spectrum often includes the terms "left" and "right," with left-leaning ideologies generally advocating for social equality and progressive policies, while right-leaning ideologies support traditional values and limited government intervention.

4) The New York Stock Exchange (NYSE) is the largest stock exchange in the world.