what is the origin of the periodic table?

The earliest versions of the periodic table appeared as early as 1869-1871, but the concept of organizing elements according to their atomic number did not originate until the early 1900s. It is generally accepted that Russian chemist Dmitri Mendeleev (1834-1907) is credited with the work and recognition of the periodic table's general qualities.

Mendeleev studied the relationships and properties of diverse elements and found patterns. He developed and published a periodic table in 1869, followed by a more detailed version in 1871. His 1871 table was almost identical to the Periodic Table we use today. It was so successful that it was adopted by various universities around Europe, and Mendeleev was awarded a gold medal by the International Exhibition of Inventions in Paris in 1884.

Before Mendeleev, other scientists in ancient times attempted to organize the elements, such as Johann Döbereiner, who studied the elements in groups of three and saw relationships in their chemical and physical properties. The failed attempts by other scientists to establish relationships between physical and chemical properties of the elements provided Mendeleev with a firm basis for his table.

Mendeleev drew up the table with blank boxes for elements to be discovered in the future. When observations were made, he was able to prove that his table was sound. However, it wasn't until the early 1900s that it was fully accepted and began to gain popularity.