April 3, 1893 - Smithsonian Astrophysical Observatory, United States of America
At the SAO, astronomers spot two two-mile wide asteroids heading towards the inner solar system, originating from the Asteroid Belt. It was originally thought they would narrowly miss Earth, hitting Venus instead. However, later reports the next day would reveal that the meteors' trajectory had changed, which would cause them to impact Earth.
April 5, 1893 - Smithsonian Astrophysical Observatory, United States of America
The SAO releases a statement predicting the impact points of the meteors. The first one, Mors, is predicted to impact somewhere in the Manchurian region of the Chinese Empire. The second one, Thanatos, is predicted to impact somewhere in the Amazonas State of Brazil. The statement also urges a migration of Manchurians farther north, Brazilians farther south, and Americans below the Mason-Dixon Line to move north.
It is predicted that the ash cloud from the Mors blast will spread west and south across the Chinese Empire, enveloping most of East Asia. The ash cloud from Thanatos is predicted to go north due to the storm system going over the region at the time of the impact. The ash cloud could go as far as South Carolina.
April 6, 1893 - Rio de Janeiro, Brazil
President Peixoto ignores the warnings of the Smithsonian Observatory, saying in an official statement that the meteor "will have no effect on life in Brazil" and that "Amazonas will not be evacuated". This decision would ultimately save many citizens of that Brazilian state from certain death.
April 7, 1893 – Beijing, Chinese Empire
The Guangxu Emperor gives the official decree to evacuate Manchuria. This involves the forced removal of 3,500,000 people.
April 8, 1893 - Washington D.C., United States of America
Secretary of Agriculture, Julius Morton, thinking that Washington D.C. might not be as safe as everyone else thinks, takes leave with his family to their summer house in Concord, New Hampshire, under the cover of using his guaranteed vacation days. Other Government officials, like Senator Aldrich of Rhode Island and Representative Rayner of Maryland, return home to prepare for the disaster.
April 14, 1893 - World
Mors impacts off course, near Tomsk, Russia. Thanatos fragments in two in the atmosphere, with one half-mile wide meteor hitting on the beaches of French Guiana, and another hitting in a field in Dauphin County, Pennsylvania.
The Mors impact obliterates Tomsk, with reports of the impact from a nearby government office being telegraphed to the Imperator minutes later. The ash cloud begins moving at an alarming rate towards Europe and Central Asia.
The South American Thanatos impact decimates the government of French Guiana, which was located on the coast. The region falls into anarchy, as the ash cloud envelops the French overseas region. It is estimated that 200,000 people (84.7%) of the population died in the blast and the ash cloud.
The United States Thanatos impact killed many more. The impact decimated much of Pennsylvania, North West Virginia, North Virginia, West Maryland, and Washington D.C. As the meteor impacted at 12:53 EST, Congress was in session at the time, and the President was in the oval office. All of the District of Columbia was obliterated. The President, The Vice President, and Congress (save a couple of senators, representatives, and congressional assistants) were killed in the blast.
April 15, 1893-December 31, 1893 (Aftermath)
After the Principality realized that the ash cloud spared the country and most of Southern Spain, the Co-Prince in Andorra, Salvador Casanas i Pages, met with the parliament to discuss what to do next. According to one first-hand account, one member of parliament (whose name was never revealed) supported an expedition to neighboring Catalonia AC in Spain. All of Parliament was supposedly uneasy, but agreed to send a small scouting team to neighboring Catalonia. The scouting team returned on May 29, 1893, one month later, and reported their findings. Catalonia was fully functioning, though hardly prospering. Food shortages were about to occur, as rationing had failed. Andorra had a large supply of food, which could, feed the remaining population in the Spanish province (many had left in search of food or clean water), albeit with strict rationing. The Catalonia Autonomous Community Government and the Principality of Andorra agreed to work together to help their citizens, setting the stage for their unification as the Catalonian Kingdom three years later.
The Ankole Kingdom would never know until 1955 why exactly the constant colonial influences they were being subject to by the Italians, Germans, French, and British alike suddenly stopped on April 14, 1893. Either way, the Ankole were finally free to do as they wished once again. The Mugabe (King) of Ankole reinstated the historically-significant annexation policy that had been laid to rest long ago. With former british bases in OTL Uganda now up for grabs, Ankole conquered them with traditional tribal warfare, finishing their territorial expansion when they finally lost a battle, on November 3, 1893. Musket-wielding Ethiopians at the under-construction capital city of Addis Ababa beat back the Ankole military, securing the Ankole Mugabe's "Fight until all is lost" policy. A peace treaty with Ethiopia was signed, declaring Ankole's territory to stretch from OTL Uganda all the way to the South Omo Zone of (previously) Ethiopia.
Argentina at the time of the meteor impact, was in the middle of yet another radical uprising. The president, Luis Peña, was in Brazil at the time to convince Brazilian President Peixoto, to heed the warnings of the observatory. The ash cloud would trap Peña and Peixoto in Rio de Janeiro, and would eventually kill them both. The Vice President, now in power after Peña's presumed death, was not prepared for the mass civilian onslaught that followed the announcement. In the ensuing attack on the Presidential Palace, the de facto President was captured and a new civilian government was instated, run by a self-declared oligarchy of radicals. With the ash cloud missing Argentina by ten miles, the new Oligarchal government ran smoothly for the next few years.