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Significance of The Day 21st December

 Radium was first discovered on 21 December 1898. Marie Curie and her husband Perry Curie discovered the metal.

Radium was discovered in 1898 by Marie Curie and Pierre Curie.
Radium was discovered by Marie Sklodowska Curie, a Polish chemist, and Pierre Curie, a French chemist, in 1898. 

Radium was discovered by Marie Skłodowska-Curie and her husband Pierre Curie on 21 December 1898, in a uraninite (pitchblende) sample from Jáchymov. While studying the mineral earlier, the Curies removed uranium from it and found that the remaining material was still radioactive. After noticing that unrefined pitchblende was more radioactive than the uranium that was separated from it.

Radium is a chemical element; it has symbol Ra and atomic number 88.

21 December Blue Christmas Support those struggling with grief during the holiday season.

21 December World Saree Day Celebrate the elegance of the traditional Indian clothing, the saree.


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