January 1 - in St. Petersburg, the body of the dead Grigory Rasputin, the tsar's adviser, was pulled from the Neva.
January 1 - Edmund Schultes was elected president of Switzerland.
January 25 — The United States of America bought the western and southern part of the Virgin Islands from Denmark for $25 million.
January 27 — coup attempt in Costa Rica.
January 31 – World War I: Germany announces the transition of its submarines to the tactics of unrestricted underwater warfare.
February 3 - World War I: The United States breaks diplomatic relations with Germany.
February 5 - the constitution of Mexico is approved.
February 13 - Mata Hari is arrested on espionage charges.
February 23 - March 2 - February Revolution in Russia.
February 24 - World War I: the American ambassador to Great Britain, Walter Page, received a transcript of the so-called The Zimmerman cables, which referred to Germany's offer to cede the southwestern United States to Mexico, in the event that the latter declared war on the United States.
March 1-2 — creation of the Council of United Public Organizations in Kyiv, which acted as a temporary authority in the first days of March 1917.
On March 1, the Japanese city of Omuta (Fukuoka Prefecture) was founded.
March 2 — The Provisional Ukrainian Revolutionary Committee in Petrograd published an appeal in support of the revolutionary events in Ukraine.
March 2 - The Jones-Shafroth Act grants US citizenship to residents of Puerto Rico.
March 3 — Russian Tsar Nicholas II Romanov abdicates in favor of his brother, Grand Duke Michael.
March 3-4 — the Ukrainian Central Council was established in Kyiv.
March 4 - the second term of US President Woodrow Wilson began.
March 4 — Grand Duke Mikhail Alexandrovich renounces his claims to the Russian royal throne, power in Russia passes to the newly formed Provisional Government headed by Prince Lviv.
March 5 — all tsarist authorities were finally liquidated on the territory of Ukraine.
On March 7, the leadership of the Central Rada was elected (Chairman - Mykhailo Hrushevskyi, deputies - Kryzhanivskyi, Doroshenko, Antonovych).
On March 12, a 20,000-strong Ukrainian demonstration under national flags took place in St. Petersburg.
March 13 —