April 16

Calendar characteristics

Because the Gregorian system adjusts for the solar year, April 16 keeps a fixed position relative to the civil calendar but its weekday shifts each year. Astrologically it lies under the sign of Aries in most sources (roughly March 21–April 19). The date can fall during movable religious observances such as Holy Week or Easter in years when those events occur late in April.

History and notable events

Across history, April 16 has been the date of many different kinds of events, from political acts and military engagements to cultural milestones and tragedies. One widely known modern event on this date is the mass shooting at Virginia Tech in 2007, which had major national and international attention. Other significant occurrences vary by year and country.

Notable births and observances

Some well-known individuals were born on April 16, including the entertainer Charlie Chaplin (born 1889) and Joseph Ratzinger, who became Pope Benedict XVI (born 1927). The date is sometimes used for local and national commemorations, anniversaries, or public holidays depending on regional calendars.

Uses, importance and distinctions

April 16 has practical relevance in civic life. For example, the United States federal tax-filing deadline is normally April 15, so when that day falls on a weekend or a holiday the legal deadline can shift to April 16. Academically, mid-April often coincides with midterm examinations in many schools and universities in the northern hemisphere.

Further notes

• As with any calendar date, the meaning of April 16 is shaped by local history and recurring commemorations.
• To learn about how leap years alter day counts, see leap years, and for background on the system that defines this date see the Gregorian calendar.