Cyclones in Bengal: A Historical Timeline of Storm Patterns and the Evolution of Human Response

Abstract: When a natural/man-made condition creates an abnormal, unbearable environment, it is called a disaster. Disasters can be of two types, such as natural disasters and man-made disasters. Disasters that occur naturally and in which there is no human participation are called natural disasters. Natural disasters cause widespread loss of life and property. For example, floods, cyclones, monsoon storms, tidal waves, tornadoes, droughts, earthquakes, landslides, river erosion, volcanic eruptions, cold waves, etc. Disasters that occur due to human negligence, mistakes or intent are called man-made disasters. For example, wars, civil wars, riots, famines, epidemics, chemical or nuclear explosions, population explosions, environmental pollution (air pollution, water pollution, etc.), fires, road accidents, etc. Most disasters occur suddenly and unexpectedly, resulting in extensive damage to livelihoods and socio-economic infrastructure. This is undeniable, especially in the case of natural disasters. Bangladesh is one of the countries in the world most prone to natural disasters. In our country, floods, cyclones, Kalbaisakhi, tornadoes, droughts and earthquakes are the most common. These natural disasters can cause severe damage to human homes, crops, livestock, transportation systems, electricity and telecommunications, water and food supplies, and sewage systems. Above all, the health of the affected population is subject to immediate and far-reaching suffering. Among these are injuries, death, diseases, and disability Those who survive a disaster experience emotional distress - grief over the loss of loved ones, loss of homes and belongings (Disaster Syndrome). Worry about injured or sick relatives, and a crisis of food, water, safety, and shelter. Among the natural disasters, floods have emerged as an annual disaster in Bengal In addition, the coastal districts identified as vulnerable areas to sea waves and cyclones. Other parts of the country are also at risk of floods, monsoon storms, tornadoes and earthquakes. Recent history shows that floods, cyclones and tornadoes (1987, 1988, 1991, 1998, 2000) have repeatedly hampered our socio-economic development and caused massive destruction of life and property. Even if we consider it from the health risk perspective, it is clear how much these natural disasters can disrupt public health. Due to floods, water-borne diseases (diarrhea, typhoid, jaundice), skin diseases, ARI, measles, eye infections, etc. usually occur in our country. Apart from this, the incidence of drowning and snakebite also increases during floods. Tornadoes usually occur suddenly and with great speed over land, and can cause physical injuries, injuries, wounds, and even death to many people at once. Physical injuries, injuries, and disappearances and deaths in the wake of the fire, and subsequent outbreaks of water-borne diseases and other infectious diseases, occur. Bengal's coastal and deltaic region-especially Sundarbans, South 24 Parganas, North 24 Parganas, Midnapore, Hooghly, Howrah, Kolkata, and the coastal belt of Odisha-Bengal-has historically been one of the most cyclone-prone zones of the Bay of Bengal. The unique geography of the Ganga-Brahmaputra-Meghna delta, the vast mangrove forest of the Sundarbans, and the shallow coastal waters have made this area highly vulnerable to severe storms and tidal surges. Historical records from the 1737 Great Calcutta Cyclone, the 1864 Calcutta Cyclone, the 1942 Midnapore Cyclone, and modern disasters like Aila (2009), Bulbul (2019), Amphan (2020), and Yaas (2021) show a continuous timeline of destructive cyclonic events. Over time, human responses in these regions-ranging from traditional community coping in the Sundarbans to modern embankment systems, cyclone shelters, and early-warning technology-have evolved significantly how society understands and facis recurring natural threat. Bengal's geographical location along the Bay of cyclone-prone regions in the world. For centuries, powerful storms, tidal surges, and heavy rainfall have shaped the land, rivers, ecology, and human life of this region. From early historical records to modern scientific data, Bengal's cyclones reveal a clear timeline of changing storm patterns influenced by climate, oceanic conditions, and seasonal winds. At the same time, human responses to these disasters have evolved-from traditional community coping practices and colonial-era relief measures to modern early-warning systems, embankments, and disaster-management policies. Understanding this historical timeline helps us see how both nature and society have continuously interacted, adapted, and survived within a landscape shaped by recurring cyclones. Keyword: Bay of Bengal, cyclogenesis; Landfall, Historical Timeline, Climate Change. Human Response, Cyclone Shelters