May is the fifth month of the year in the Julian and Gregorian calendars. Its length is 31 days.
May is a month of spring in the Northern Hemisphere, and autumn in the Southern Hemisphere. Therefore, May in the Southern Hemisphere is the seasonal equivalent of November in the Northern Hemisphere and vice versa. Late May typically marks the start of the summer vacation season in the United States (Memorial Day) and Canada (Victoria Day) that ends on Labor Day, the first Monday of September.
1816 (MDCCCXVI) was a leap year starting on Monday of the Gregorian calendar and a leap year starting on Saturday of the Julian calendar, the 1816th year of the Common Era (CE) and Anno Domini (AD) designations, the 816th year of the 2nd millennium, the 16th year of the 19th century, and the 7th year of the 1810s decade. As of the start of 1816, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.
This year was known as the Year Without a Summer, because of low temperatures in the Northern Hemisphere, possibly the result of the 1815 eruption of Mount Tambora in Indonesia, causing severe global cooling, catastrophic in some locations.
Vaisakha (Sanskrit: वैशाख, IAST: Vaiśākha) is the second month of the Hindu lunar calendar and the Indian national calendar. The name of the month is derived from the position of the Moon near the Vishākhā nakshatra (star) on the full moon day. It corresponds to April–May in the Gregorian calendar. The month corresponds to the end of the spring (Vasanta) season and falls in April–May of the Gregorian calendar.
In the Hindu solar calendar, it corresponds to the month of Mesha and begins with the Sun's entry into Aries. It corresponds to Boishakh, the first month in the Bengali calendar. In the Tamil calendar, it corresponds to the third month of Vaikasi, falling in the Gregorian months of May–June. In the Vaishnav calendar, it corresponds to the third month of Madhusudanah.
June is the sixth month of the year in the Julian and Gregorian calendars—the latter the most widely used calendar in the world. Its length is 30 days. June succeeds May and precedes July. This month marks the start of summer in the Northern Hemisphere and contains the summer solstice, which is the day with the most daylight hours. In the Southern Hemisphere, June is the start of winter and contains the winter solstice, the day with the fewest hours of daylight out of the year.
Maius or mensis Maius (May) was the fifth month of the ancient Roman calendar in the classical period, following Aprilis (April) and preceding Iunius (June). On the oldest Roman calendar that had begun with March, it was the third of ten months in the year. May had 31 days.
The Romans considered May an infelicitous month. Although it began with one of the most notoriously licentious holidays of the Roman calendar, the Games of Flora (Ludi Florae), the middle of the month was devoted to propitiating the lemures, the restless shades of the dead.