input: The agents of the Catholic Church wrote detailed accounts of the Maya, in support of their efforts at evangelization, and absorption of the Maya into the Spanish Empire. This was followed by various Spanish priests and colonial officials who left descriptions of ruins they visited in Yucatan and Central America. In 1839, American traveller and writer John Lloyd Stephens set out to visit a number of Maya sites with English architect and draftsman Frederick Catherwood. Their illustrated accounts of the ruins sparked strong popular interest, and brought the Maya to the attention of the world. The later 19th century saw the recording and recovery of ethnohistoric accounts of the Maya, and the first steps in deciphering Maya hieroglyphs. The final two decades of the 19th century saw the birth of modern scientific archaeology in the Maya region, with the meticulous work of Alfred Maudslay and Teoberto Maler. By the early 20th century, the Peabody Museum was sponsoring excavations at Copan and in the Yucatan Peninsula. In the first two decades of the 20th century, advances were made in deciphering the Maya calendar, and identifying deities, dates, and religious concepts. Since the 1930s, archaeological exploration increased dramatically, with large-scale excavations across the Maya region. In the 1960s, the distinguished Mayanist J. Eric S. Thompson promoted the ideas that Maya cities were essentially vacant ceremonial centres serving a dispersed population in the forest, and that the Maya civilization was governed by peaceful astronomer-priests. These ideas began to collapse with major advances in the decipherment of the script in the late 20th century, pioneered by Heinrich Berlin, Tatiana Proskouriakoff, and Yuri Knorozov. With breakthroughs in understanding of Maya script since the 1950s, the texts revealed the warlike activities of the Classic Maya kings, and the view of the Maya as peaceful could no longer be supported.

Answer this question "Why did he say this?"
output: These ideas began to collapse with major advances in the decipherment of the script in the late 20th century,

Question: Serebro (Russian: Serebro; English translation: Silver) (Stylized as SEREBRO) is a Russian girl group formed by their manager and producer Maxim Fadeev.

After the decline of their success after "Mama Lover", the group started to record songs for their third studio album. In January 2013, the group announced that they would release their further material in Japan after signing with EMI Music. They also announced that they plan to release a compilation entitled Serebration that includes songs from their first and second studio albums. The group traveled to Japan to promote the compilation album and to do a live concert tour. In March 2013, the group released their promotional single "Sexy Ass", but it failed to chart in Russia. In June 2013, the group released their single "Mi Mi Mi" which charted in Italy, peaking at 5 on the Italian iTunes chart. In July 2013, the group released the song "Malo Tebya". The song was released on Russian radio airplay on 10 July and marked a welcome return to the top ten in Russia for the band, ultimately peaking at number five. A new collaboration with DJ M.E.G., entitled "Ugar" (Ugar), has premiered on the band's Facebook page and the Promo DJ website on 18 September. The group announced that they signed a deal with Republic Records and Universal Music Group and discussed plans to re-release their single "Mi Mi Mi" as their first international single. On 28 September, member Anastasia Karpova confirmed her planned departure from the group. Karpova had told Fadeev months prior that she intended to leave the group. She noted that the decision was mutual with other members of the band and that her primary motivation was to pursue a solo career. A new member, named Dasha Shashina, was announced on 3 October 2013. Shashina had re-recorded Anastasia's recordings in the group's songs "Malo Tebya" and "Ugar", which is expected to release a video with Shashina featuring in it. Temnikova left the group in May 2014, ahead of her planned December exit, after having become pregnant. Karpova temporarily returned until newest member Polina Favorskaya was introduced on June 5, 2014. Serebro's 3rd studio album '925' was supposed to be released on iTunes Russia on 15 October 2015 but due to their studio harddrive being stolen, the album release had to be cancelled.

Using a quote from the above article, answer the following question: Aside from Serebration what other plans did they have
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Answer:
In March 2013, the group released their promotional single "Sexy Ass", but it failed to chart in Russia.