Poland close border (22 h, mar 13, 2020 y – apr 13, 2020)
Description:
 https://www.straitstimes.com/world/europe/coronavirus-poland-to-close-borders-to-foreigners-quarantine-returnees 
Added to timeline:
Date:
22 h, mar 13, 2020 y
apr 13, 2020
 ~ 1 months