Original sentence: Igor Ivanovich Sikorsky (, tr.They were divorced and Olga remained in Russia with their daughter, Tania, as Sikorsky departed after the October Revolution.Ígor' Ivánovič Sikórskij; May 25, 1889 – October 26, 1972) was a Russian–American aviation pioneer in both helicopters and fixed-wing aircraft
Edited sentence: " But in a letter dated August 30, 1933, Igor Sikorsky wrote to Vasyl Halych, a Ukrainian-born American historian, a full member of the Shevchenko Scientific Society, and the American Historical Association: “My family who comes from a village in Kiev region, my grandfather and great grandfather were priests.All of my family members were Ukrainians.Igor Ivanovich Sikorsky (, , tr.Ihor Sikorsky (1889-1972), father of modern helicopters.The city should remember.They were divorced and Olga remained in Russian Empire with their daughter, Tania, as Sikorsky departed after the October Revolution.Ukrainian Institute of America.When the prominent Ukrainian poetess Lesya Ukrainka came to Kyiv, she always stayed at the Sikorski family home at 18 Tarasivska Street, where her friend Natalia Vyshynska-Grozdova (Sikorska's maternal line) lived, who was the goddaughter of the Ukrainian writer Olena Pchilka, Lesya Ukrainka's mother.Ígor' Ivánovič Sikórskij; May 25, 1889 – October 26, 1972) was a Ukrainian–American aviation pioneer in both helicopters and fixed-wing aircraft