Your IRS Preparer Tax Identification Number (PTIN) does expire every tax season. PTIN renewal occurs after October 15, and the identification number is valid through December 31 of the following year.
Famous Wassily Kandinsky Paintings. List of famous Wassily Kandinsky paintings, listed alphabetically with pictures of the art when available. A celebrated artist around the world, Wassily Kandinsky has created some of the most historic paintings of all time.
Prominent Russians: Dmitry Mendeleev. February 8, 1834 â February 2, 1907. Mostly known in the West for creating the Periodic Table of Elements, Dmitry Mendeleevâs contribution to the development of Russia is huge.A real Renaissance man, his areas of study ranged from chemistry to aeronautics to Arctic exploration to demographics.endeleevâs greatest contribution to science is certainly the Periodic Table of Elements, which says the properties of basic elements repeat periodically when they are arranged by their atomic number. He made the discovery in 1869 during his work on the award-winning textbook on chemistry basics.