Climate of Bihar in the south China sea. The maximum frequency of the tropical cyclones in Bihar is during September–November especially during the asterism called hathiya. These cyclones are essential for the maturing of paddy, and are required for the moistening of the soil for the cultivation of rabi crops. Bihar is India's most flood-prone State, with 76% of the population in the north Bihar living under the recurring threat of flood devastation. According to some historical data, 16.5% of the total flood affected area in India is located in Bihar while 22.1% of the flood affected population in India lives in Bihar.
Seventeen Provinces his son, the King of Spain. Conflicts between Philip II and his Dutch subjects led to the Eighty Years' War, which started in 1568. The seven northern provinces gained their independence as a republic called the Seven United Provinces. They were: The southern provinces, Flanders, Brabant, Namur, Hainaut, Luxembourg and the others, were restored to Spanish rule due to the military and political talent of the Duke of Parma, especially at the Siege of Antwerp (1584–1585). Hence, these provinces became known as the "Spanish Netherlands" or Southern Netherlands. The northern Seven United Provinces kept parts of Limburg, Brabant, and Flanders