What events happened in the

* 1st:

* Jair Bolsonaro is inaugurated as the 38th president of Brazil, succeeding Michel Temer.

* The United States withdraws from the Intermediate-Range Nuclear Forces Treaty with Russia.

* 2nd:

* NASA's New Horizons spacecraft performs a flyby of the Kuiper Belt object 486958 Arrokoth.

* The 116th United States Congress convenes.

* 3rd:

* China's Chang'e 4 probe successfully lands on the far side of the Moon, becoming the first spacecraft to do so.

* 10th:

* Juan Guaidó is declared interim president of Venezuela by the National Assembly.

* The United States recognizes Juan Guaidó as the legitimate president of Venezuela.

* 13th:

* The United Kingdom's House of Commons votes against Theresa May's Brexit deal for the third time.

* 15th:

* The United Nations Security Council passes a resolution condemning the human rights situation in North Korea.

* 16th:

* Theresa May announces her resignation as Prime Minister of the United Kingdom.

* 23rd:

* Juan Guaidó is arrested by Venezuelan security forces.

* 24th:

* Guaidó is released by Venezuelan security forces.

* 25th:

* Theresa May steps down as Prime Minister of the United Kingdom.

* 27th:

* Boris Johnson is elected as the new Prime Minister of the United Kingdom.

February

* 2nd:

* The United States and North Korea hold a second summit in Hanoi, Vietnam.

* 14th:

* The United States recognizes Venezuelan opposition leader Juan Guaidó as the interim president of Venezuela.

* 15th:

* The United Nations Security Council passes a resolution condemning the human rights situation in Venezuela.

* 23rd:

* The United Kingdom leaves the European Union.

March

* 8th:

* Ethiopian Airlines Flight 302 crashes, killing all 157 people on board.

* The United States Department of Justice indicts Russian nationals for interfering in the 2016 United States presidential election.

* 10th:

* The United Nations Security Council passes a resolution calling for an end to the fighting in Yemen.

* 12th:

* Hurricane Dorian makes landfall in The Bahamas as a Category 5 hurricane.

* 15th:

* New Zealand's Prime Minister, Jacinda Ardern, announces that the country will ban assault weapons.

* 16th:

* The European Union imposes sanctions on Russia for its role in the poisoning of Sergei Skripal.

* 17th:

* The United States imposes sanctions on Venezuela for its human rights record.

* 18th:

* France's President Emmanuel Macron announces a plan to overhaul the French economy.

* 19th:

* The United Kingdom's Parliament votes against leaving the European Union without a deal.

* 20th:

* The United States and China agree to a trade deal.

* 21st:

* The European Union agrees to extend the United Kingdom's membership in the bloc until October 31.

April

* 1st:

* The United States imposes sanctions on Iran's oil exports.

* 2nd:

* The European Union imposes sanctions on Russia for its role in the downing of Malaysia Airlines Flight 17.

* 3rd:

* The United States recognizes Juan Guaidó as the interim president of Venezuela.

* 4th:

* The United Nations Security Council passes