|Holiday name||Holiday location||Holiday type|
|International Day of Friendship||-||International (Relationships & Family, United Nations)|
|Independence Day||Vanuatu||Public Holiday|
|Feast of the Throne||Morocco||National Holiday|
|Martyrs Day||South Sudan||Public Holiday|
|National Cheesecake Day||-||Unofficial (Food & Drinks)|
|National Father-in-Law Day||-||Unofficial (Relationships & Family)|
|National Whistleblower Day||-||Unofficial (Awareness & Cause)|
|National Chili Dog Day||-||Unofficial (Food & Drinks)|
|Emancipation Day||Bermuda||Public Holiday|
|World Day against Trafficking in Persons||-||International (Awareness & Cause, United Nations)|
|Birthday of the Sultan of Pahang||Malaysia (Pahang)||Common Local Holiday|
Historical Events on July 30
- 1729: The city of Baltimore in Maryland is founded on this date.
- 1733: The first Masonic Grand Lodge in North America is founded in Massachusetts.
- 1811: The Spanish execute Father Miguel Hidalgo y Costilla in Chihuahua City, Mexico.
- 1863: Native American tribal leaders and representatives from the U.S Government sign the Treaty of Box Elder during the American Indian Wars.
- 1864: Battle of the Crater begins during the American Civil War as Union troops attempt to explode a large bomb under Confederate trenches.
- 1865: A steamboat called Brother Jonathan sinks off the coast of Crescent City in California. Over two hundred and twenty-five people are killed.
- 1866: In New Orleans, armed Confederate veterans riot against a meeting of Radical Republicans. Over 100 people are injured and 48 people are killed.
- 1945: I-58 – a Japanese submarine – sinks the USS Indianapolis during World War II. Over 880 seamen will die over the course of the next 4-days. This is when an aircraft spots the survivors.
- 1956:S President Dwight D. Eisenhower signs a joint resolution passed by the United States Congress that authorizes “In God We Trust” as a national motto.
- 1965: The Social Security Act of 1965 is signed into law by United States’ President Lyndon B. Johnson. This act establishes Medicaid and Medicare.
- 1969:S President Richard Nixon visits South Vietnam and meets with U.S military commanders as well as President Nguyễn Văn Thiệu.
- 1971: David Scott, James Irwin and the Lunar Rover lands on the moon with the Apollo Lunar Module Falcon on this date.
Famous Birthdays on July 30
- English novelist and poet, Emily Bronte is born in 1818.
- American engineer, businessman and founder of Ford Motor Co., Henry Ford is born in 1863.
- English sculptor and illustrator Henry Moore is born in 1898.
- French virologist, biologist and Nobel Prize laureate, Françoise Barré-Sinoussi is born in 1947.
- Austrian-American actor and 38th Governor of California, Arnold Schwarzenegger is born in 1947.
- American actress Delta Burke is born in 1956.
- American actress and producer, Lisa Kudrow is born in 1963.
- America actress Vivica A. Fox is born in 1964.