National Women's Day  

February 13th is celebrated as Women's Day in some countries, particularly in parts of Eastern Europe such as Belarus, Russia, and Ukraine. This day has historical roots that tie back to the early 20th century and the struggle for women's rights.

The significance of February 13th in these countries can be traced back to the adoption of the Gregorian calendar in 1918. At that time, the Julian calendar, which was used in Russia and some other Eastern European countries, was 13 days behind the Gregorian calendar

March 8th had become widely recognized as International Women's Day following the 1917 Russian Revolution. On that day, women in Petrograd (now St. Petersburg) went on strike to protest against food shortages, poor working conditions, and the tsarist regime.

After the adoption of the Gregorian calendar in 1918, February 23rd (Julian calendar) was aligned with March 8th (Gregorian calendar), and International Women's Day continued to be celebrated on March 8th in most countries. However, in countries that continued to use the Julian calendar, such as Russia, February 23rd re

In summary, February 13th is celebrated as Women's Day in some countries due to historical calendar differences and the alignment of the Julian and Gregorian calendars. It remains a day to honor women's contributions to society and advocate for gender equality and women's rights.