Explanation

Starting in June 2026, new U.S. dollar bills will feature the signatures of President Donald J. Trump and Treasury Secretary Scott Bessent.

Note: This is the first time in history that a sitting U.S. president's signature will appear on the nation's banknotes.

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Explanation

 World War I (1914–1918)

Explanation

• The 49th Parallel is an important latitude line in North America.
• It forms most of the border between the USA and Canada.
• It was established through historical agreements between the two countries.
• It is one of the longest straight international borders in the world.
• It separates southern Canada from northern United States.

Last verified on 16-05-2026

Explanation

• Leader: Winston Churchill
• Speech: Fulton (Sinews of Peace) Speech (Missouri, USA)
• Date and Year: March 5, 1946
• Meaning: Division of Europe into East (Soviet) and West (Democratic) blocs
• Era: Start of Cold War

Last verified on 16-05-2026

Explanation

NASA, the space agency of the United States (US), developed the Nancy Grace Roman Space Telescope to investigate dark matter, dark energy, and the infrared universe. Completed in 2026, it features a 2.4-meter mirror with a, field of view 100 times larger than Hubble, allowing for rapid, wide-field 3D cosmic mapping.