Official lottery is a government-sponsored game in which people have the chance to win a prize by matching a series of numbers. These games are regulated by law and provide a popular alternative to traditional taxation. Lottery profits are typically used to fund public projects. The earliest evidence of lotteries date to the 15th century. These early lotteries were conducted by towns to raise money for town fortifications and poor relief.

In the United States, lottery games are regulated by the individual jurisdictions and there is no national organization overseeing them. However, state-run lotteries often form consortiums to offer games with larger geographic footprints that can attract a higher level of prize money. Some states also offer instant tickets, keno, and video lottery terminals.

The lottery has a long history in many countries and is still an important source of revenue for most governments. Some critics of the lottery argue that it is a form of hidden tax and preys on vulnerable populations. Others say that the lottery encourages responsible gambling and provides a way for people to gain financial freedom and improve their lives. A recent study found that state lottery retailers are disproportionately located in low-income communities. The findings suggest that the lottery has a social justice impact and should be carefully monitored by regulators. The lottery is one of the most popular forms of gaming in the world, raising billions of dollars for charities, sports teams, and state and local governments. In some states, a percentage of the lottery proceeds is allocated to education.