Here are 15 significant historical events that happened on June 5th:

70 AD: Siege of Jerusalem: Titus and his Roman legions breach the Second Wall of Jerusalem during the Siege of Jerusalem.

1829: HMS Pickle rescues survivors of the wreck of the Portuguese ship, Mornio, off the coast of Brazil.

1832: The June Rebellion: The June Rebellion breaks out in Paris in an attempt to overthrow the monarchy of Louis-Philippe.

1849: Denmark becomes a constitutional monarchy. The signing of the Danish constitution establishes Denmark as a constitutional monarchy.

1883: First Orient Express: The first regularly scheduled Orient Express departs Paris for Vienna.

1942: Battle of Midway: The Battle of Midway, one of the most decisive battles of World War II, begins.

1944: Rome is liberated. The Allied forces liberate Rome during World War II.

1963: John Profumo resigns. British Secretary of State for War John Profumo resigns due to a scandal involving his relationship with Christine Keeler.

1967: The Six-Day War begins between Israel and neighboring Arab countries, Egypt, Jordan, and Syria.

1968: Assassination of Robert F. Kennedy: Senator Robert F. Kennedy is shot at the Ambassador Hotel in Los Angeles; he dies the next day.

1975: The Suez Canal, closed since the Six-Day War, reopens.

1981: AIDS is recognized: The Centers for Disease Control and Prevention (CDC) reports the first cases of what later became known as AIDS.

1989: Tiananmen Square Massacre: The Chinese government cracks down on pro-democracy protesters in Beijing’s Tiananmen Square.

2004: Death of Ronald Reagan: Ronald Reagan, the 40th President of the United States, dies at the age of 93.

2017: Montenegrin NATO membership: Montenegro becomes the 29th member of NATO.
These events highlight a range of significant moments, from battles and political changes to scientific recognitions and international developments.