Question: Cheryl Ann Tweedy was born in Newcastle upon Tyne on 30 June 1983, and grew up on council estates in the suburbs of Walker and Heaton. She is the fourth of five children of Joan Callaghan, and the first of her two children with Garry Tweedy following the collapse of her marriage to the father of her three other children. Cheryl's parents were together for more than a decade but never married; they separated when she was eleven years old. At the age of seven, Cheryl appeared in a television advert for British Gas.

In 2014, Cheryl returned as a judge on the UK version of The X Factor for its eleventh series, signing a PS1.5 million contract. She was joined by Simon Cowell, Louis Walsh and Mel B on the judging panel. She was again selected to mentor the girls category, and she chose Chloe Jasmine, Stephanie Nala, Lauren Platt and Lola Saunders for the live shows. Nala and Jasmine were eliminated in week 2 and Saunders in week 4, while Platt finished fourth. In 2015, Cheryl returned to The X Factor for its twelfth series; she was joined by Cowell and new judges Rita Ora and Nick Grimshaw. She was selected to mentor the groups category for the first time and chose 4th Impact, Alien Uncovered and Reggie 'n' Bollie for the live shows. Alien Uncovered were eliminated in week 1, while 4th Impact and Reggie 'n' Bollie finished in fifth and second place, respectively. Cheryl confirmed her departure from The X Factor in April 2016, choosing to focus on her music career. On 2 June 2014, she debuted the first single from her fourth studio album Only Human, "Crazy Stupid Love", which features Tinie Tempah. Later in the month, she performed at Capital FM's Summertime Ball at Wembley Stadium. On 27 July, "Crazy Stupid Love" entered the UK Singles Chart at number one, selling 118,000 copies. It became her fourth number one single on the chart, making her the third British female artist to achieve four numbers ones as a solo artist, after Geri Halliwell and Rita Ora. The song also peaked at number one in Ireland. The second single from Only Human, "I Don't Care", was released on 2 November and similarly to its predecessor debuted at number one in the UK, becoming her fifth number one in the country. This made her the first British female to have five solo number one singles in the UK. Only Human was released on 10 November and became her fourth solo album to debut within the top 10 in the United Kingdom and Ireland. It was later certified silver in the UK. The album's title track was chosen as its third single. The song, which originally peaked at number 70 as an album cut in October 2014, failed to reach the top 100 on the UK Singles Chart upon the single's release, therefore becoming her lowest-charting single to date. In 2015, Cheryl announced she was working on her fifth studio album, initially due for release in 2016.

Using a quote from the above article, answer the following question: What did Cheryl do at Only human?
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Answer: her fourth studio album Only Human,

Question: Timur was born in Transoxiana near the city of Kesh (modern Shahrisabz, Uzbekistan) some 80 kilometres (50 mi) south of Samarkand, part of what was then the Chagatai Khanate. His father, Taraqai, was a minor noble of the Barlas, a Mongolian tribe that had been turkified in many aspects. According to Gerard Chaliand, Timur was a Muslim, and he saw himself as Genghis Khan's heir. Though not a Borjigid or a descendent of Genghis Khan, he clearly sought to invoke the legacy of Genghis Khan's conquests during his lifetime.

Timur spent the next 35 years in various wars and expeditions. He not only consolidated his rule at home by the subjugation of his foes, but sought extension of territory by encroachments upon the lands of foreign potentates. His conquests to the west and northwest led him to the lands near the Caspian Sea and to the banks of the Ural and the Volga. Conquests in the south and south-West encompassed almost every province in Persia, including Baghdad, Karbala and Northern Iraq. One of the most formidable of Timur's opponents was another Mongol ruler, a descendant of Genghis Khan named Tokhtamysh. After having been a refugee in Timur's court, Tokhtamysh became ruler both of the eastern Kipchak and the Golden Horde. After his accession, he quarreled with Timur over the possession of Khwarizm and Azerbaijan. However, Timur still supported him against the Russians and in 1382 Tokhtamysh invaded the Muscovite dominion and burned Moscow. In 1395 Tamerlane reached the frontier of Principality of Ryazan, took Elets and advancing towards Moscow came near the banks of the Don River. Great Prince Vasily I of Moscow went with an army to Kolomna and halted at the banks of the Oka River. The clergy brought the famed Theotokos of Vladimir icon from Vladimir to Moscow. Along the way people prayed kneeling: "O Mother of God, save the land of Russia!" Suddenly, Tamerlane's armies retreated. In memory of this miraculous deliverance of the Russian Land from Tamerlane on August 26, the all-Russian celebration in honor of the Meeting of the Vladimir Icon of the Most Holy Mother of God was established.

Using a quote from the above article, answer the following question: What happened during the period of expansion?
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Answer:
1395 Tamerlane reached the frontier of Principality of Ryazan, took Elets and advancing towards Moscow came near the banks of the Don River.