Problem: In late 1920, the Persian Soviet Socialist Republic in Rasht was preparing to march on Tehran with "a guerrilla force of 1,500 Jangalis, Kurds, Armenians and Azerbaijanis", reinforced by the Bolsheviks' Red Army. This fact, along with various other disorders, mutinies and unrest in the country created "an acute political crisis in the capital." By 1921, the ruling Qajar dynasty of Persia had become corrupt and inefficient. The oil-rich nation was somewhat reliant on the nations of Britain and Russia for military and economic support. Civil wars earlier in the decade had threatened the government, and the only regular military force at the time was the Cossack Brigade. The Qajar shah in 1921 was Ahmad, who had been crowned at the age of eleven. He was considered to be a weak, incompetent ruler, especially after British, Russian and Ottoman occupations of Persia during World War I. In 1911, when the capital city, Tehran, had been seized by the Russians, armed Bakhtiaris tribemen, rather than Iranian regular troops, expelled the invaders. This further diminished the government's reputation, rendering it almost powerless in time of war. Britain, which played a major role in Persia, was dismayed by the Qajar government's inability to rule efficiently. This inefficiency was the background of a power struggle between Britain and Russia, each nation hoping to control Persia. On 14 January 1921, the British General Ironside chose to promote Reza Khan, who had been leading the Tabriz battalion, to lead the entire brigade. About a month later, under British direction, Reza Khan's 3,000-4,000 strong detachment of the Cossack Brigade reached Tehran.

When approximately did Reza Khan's 3,000-4,000 strong detachment of Cossack Brigade reach Tehran?
Answer: 1921-February-14

Problem: The British commanders adopted a policy of avoiding reverses, before attempting to defeat the Senussi. Sollum was 280mi from Alexandria, too far west for a base and too exposed to German submarines, with the lack of fast patrol boats to guard ships in the bay. Mersa Matruh was 120mi closer to Alexandria and had a good water supply. The Western Frontier posts were ordered back to Matruh to concentrate and to be reinforced by troops moved along the coast by trawler and on the Khedival Railway as far as Dabaa, 75mi short of Matruh. Orders were given on 20 November to form a Western Frontier Force, made up of composite horse and infantry brigades and supporting arms; by the end of the year, the British had about 40,000 troops in the Western Desert. On 21 November, the 2nd Battalion New Zealand Rifle Brigade, a company of the 15th Sikhs, parties of the Bikanir Camel Corps and an armoured train crewed by Egyptian gunners, was sent to Dabaa to guard the railway and patrol to the Moghara Oasis. Later on, the 1/1st North Midland Mounted Brigade was sent to Faiyum and a smaller force went to garrison Wadi Natrun, 45mi south of Alexandria.

How many miles farther was Sollum from Alexandria than Wadi Natrun?
Answer: 235

Problem: Following the conquest of the temple fort , later known as Jaromarsburg, on Arkona in 1168 by the Danes under King Valdemar I and Bishop Absalon of Roeskilde, the princes of Rugen had to recognise Danish suzerainty. On their accession to power, the Rugen princes were forced to confirm their allegiance to the Danish king and were obliged to provide military support to the Danes. In 1304 Vitslav III of Rugen gained sole lordship over the territory on the death of his brother, Sambor. Because he had no issue at that point in time, there existed the possibility that Rugen's princely house could become extinct. As a result, in 1310 he agreed a contract of inheritance at Ribnitz with the Danish king, Eric VI Menved, his feudal lord. The agreement was that in the event of Vitslav dying without issue, the fiefdom of Rugen would be returned to the Danish crown. At that time, Eric VI Menved was attempting to extend his power in the southern Baltic Sea region in order to reduce the influence of Hanseatic towns like Stralsund. To assist him, in addition to the princes of Rugen, the king also had Prince Henry II of Mecklenburg as a vassal. After the death of Eric VI Menved in 1319, the 1310 treaty lapsed and Vitslav III sought allies in the Pomeranian dukes. On 5 May 1321 dukes Otto I of Pomerania, Vartislav IV of Pomerania-Wolgast and Barnim II of Pomerania-Stettin agreed a mutual inheritance contract with Vitslav III of Rugen. But in an alliance agreement that had been previously concluded on 25 October 1315 between Vartislav IV, the son of Vitslav's sister, Margaret, and Eric's brother, Christopher of Halland, who later became King Christopher II of Denmark, Vartislav IV had already been promised the Rugen fiefdom.

How many years had Vitslav III had sole lordship before he signed a contract of inheritance with the Danish king?
Answer: 6

Problem: One such move, in regard to land reform, was to nationalize most farmland and give it to the peasants across Mexico. He also put into effect a national school system that was largely secular to combat church influence in late 1924. After two years the church protested the movement by refusing to give the blessed sacrament to the populace. Some peasants also joined in the protests, adding greater land reforms to the list of demands by the rebelling priests. The rebellion was openly supported by the Catholic Church and received funding, beginning the Cristero War. Meanwhile, in 1927, another military coup was attempted, this time receiving support from land owners. Calles quickly crushed the rebellion with help from the newly mobilized peasant battalions, who later on were used to fight against the Church. In the midst of the mobilized worker's militias, land reform, and anti-church actions, the American government began to openly declare Mexico a Bolshevik regime. To recover from the backlash, Calles began to tone down the radical rhetoric and slowed land reform policies in 1928. A year later, Calles defeated the church ending the rebellion. After the war ended in 1929, supporters of Calles and Obregon began to form a united political party called the National Revolutionary Party or PNR. This was to unite the various revolutionary factions of the civil war to prevent further Cristero revolts and build stability. After a series of interim presidents controlled by the party, Lazaro Cardenas took power in 1934. Cardenas was a socialist and began to base government policy on class struggle and empowering the masses. However, not all of his reforms were completely socialist, making him somewhat more centrist than purely socialist. Regardless, his rule was the most radical phase of the post revolution, social revolution.

How many years passed between the end of the war and Lazaro Cardenas taking power?
Answer:
5