Poverty has existed in the world throughout recorded history. Ancient Rome had a great deal of poverty. Knights and castles come to mind when one thinks of the Middle Ages, but poverty was a serious problem during that period, too. Even modern societies struggle with poverty.
One problem with fighting poverty is that it can be hard to measure. For example, consider the case of Thailand. Official statistics indicate that only 7 to 8% of its people live in poverty. A few extremely wealthy families control the country's economy, though. The minimum wage in Thailand is only about $10 per day. Corruption is endemic. In fact, there is a great deal of poverty in the Land of Smiles.
Americans have sometimes considered poverty as a problem for third-world countries. But America has a long history of it—from colonial to modern times. Colonial poverty worsened in the early-eighteenth century in Boston and New York.
Economic crises—such as those caused by severe recessions depressions—have caused poverty rates to fluctuate in the US President Lyndon B. Johnson had his "war on poverty," but his efforts in this sphere were overshadowed by his failure in the Vietnam War. In 2019, Michael Bloomberg, a billionaire candidate for the 2020 Residential Election, promises a new "war on poverty." He argues for a minimum wage of $15 an hour.
World poverty is caused by numerous factors including: war, corruption, overpopulation, and human avarice. In other words, humans may be greedy by nature. Climate change will exacerbate the poverty as it alters the world's weather patterns.
There is not even a remote chance that world poverty will be ended. In many countries, including the United States, the gulf between the affluent and the indigent is widening—not decreasing.