Q: The "Billboard" Hot 100 is the music industry standard record chart in the United States for singles, published weekly by "Billboard" magazine. Chart rankings are based on sales (physical and digital), radio play, and online streaming.

The weekly sales period was originally Monday to Sunday, when Nielsen started tracking sales in 1991, but was changed to Friday to Thursday in July 2015. Radio airplay, which, unlike sales figures and streaming data, is readily available on a real-time basis, and is tracked on a Monday to Sunday cycle (previously Wednesday to Tuesday). A new chart is compiled and officially released to the public by "Billboard" on Tuesdays. Example:

The first number one song of the Hot 100 was "Poor Little Fool" by Ricky Nelson, on August 4, 1958. As of the issue for the week ending on October 7, 2017, the Hot 100 has had 1,067 different number one hits. The current number one song is "Bodak Yellow" by Cardi B.

Prior to 1955, "Billboard" did not have a unified, all-encompassing popularity chart, instead measuring songs by individual metrics. At the start of the rock era in 1955, three such charts existed:

Although officially all three charts had equal "weight" in terms of their importance, many chart historians refer to the "Best Sellers in Stores" chart when referencing a song's performance prior to the creation of the Hot 100; until the start of the rock era in 1955, radio was still in its Golden Age, characterized more by spoken-word programs than music radio, and physical record sales were still the dominant indicator of a recording's popularity. On the week ending November 12, 1955, "Billboard" published The Top 100 for the first time. "The Top 100" combined all aspects of a single's performance (sales, airplay and jukebox activity), based on a point system that typically gave sales (purchases) more weight than radio airplay. The "Best Sellers In Stores", "Most Played by Jockeys" and "Most Played in Jukeboxes" charts continued to be published concurrently with the new "Top 100" chart.

1. is the music industry standard record chart in the United States for singles
2. "Billboard" magazine
3. sales
4. online streaming
5. radio play
6. Nielsen started tracking sales in 1991
7. Tuesdays
8. "Billboard" did not have a unified, all-encompassing popularity chart
9. more spoken-word programs than music radio
10. November 12, 1955

Numbered questions:
1. What is the Billboard Hot 100?
2. Who publishes it?
3. What is one thing the ranking is based on?
4. And another?
5. And the last?
6. What changed in 1991?
7. What day is the list released?
8. Before 1955 what did not exist?
9. What did radio mainly consist of before 1955?
10. What date was the first top 100 list published?

input: Make use of the article to answer the questions. The Serbs are a South Slavic ethnic group that formed in the Balkans. The majority of Serbs inhabit the nation state of Serbia (with a minority in disputed Kosovo), as well as Bosnia and Herzegovina, Montenegro and Croatia. They form significant minorities in Macedonia and Slovenia. There is a large Serb diaspora in Western Europe, and outside Europe there are significant communities in North America and Australia.

The Serbs share many cultural traits with the rest of the peoples of Southeast Europe. They are predominantly Eastern Orthodox Christians by religion. The Serbian language is official in Serbia, co-official in Kosovo and Bosnia and Herzegovina, and is spoken by the plurality in Montenegro.

The modern identity of Serbs is rooted in Eastern Orthodoxy and traditions. In the 19th century, the Serbian national identity was manifested, with awareness of history and tradition, medieval heritage, cultural unity, despite living under different empires. Three elements, together with the legacy of the Nemanjic dynasty, were crucial in forging identity and preservation during foreign domination: the Serbian Orthodox Church, the Serbian language, and Kosovo Myth. When the Principality of Serbia gained independence from the Ottoman Empire, Orthodoxy became crucial in defining the national identity, instead of language which was shared by other South Slavs (Croats and Bosniaks). The tradition of "slava", the family saint feast day, is an important ethnic marker of Serb identity, and is usually regarded their most significant and most solemn feast day. 1. Who inhabit Serbia?
2. What are they called?
3. Where did they form?
4. Where else do they live
5. Where are they minorities?
6. Are there other places they live?
7. Who do they share cultural traits with
8. What is their religion
9. Do they have a language?
10. What is it
11. is it official in Serbia
numbered_answers: 1. South Slavic ethinic group
2. Serbs
3. Balkans
4. Bosnia
5. Macedonia and Slovenia
6. Western Europe, North America and Austrailia
7. Southeast Europe
8. Eastern Orthodox Chrstians
9. Yes
10. Serbian language
11. Yes

CHAPTER XIX

For the Princess it was a day full of excitements. The Count had only just reluctantly withdrawn, and Jeanne had gone to her room under the plea of fatigue, when Forrest was shown in. She started at the look in his drawn face.

"Nigel," she exclaimed hastily, "is everything all right?"

He threw himself into a chair.

"Everything," he answered, "is all wrong. Everything is over."

The Princess saw then that he had aged during the last few days, that this man whose care of himself had kept him comparatively youthful looking, notwithstanding the daily routine of an unwholesome life, was showing signs at last of breaking down. There were lines about his eyes, little baggy places underneath. He dragged his feet across the carpet as though he were tired. The Princess pushed up an easy-chair and went herself to the sideboard.

"Give me a little brandy," he said, "or rather a good deal of brandy. I need it."

The Princess felt her own hand shake. She brought him a tumbler and sat down by his side.

"You had to kill him?" she asked, in a whisper. "Is it that?"

Forrest set down his glass--empty.

"No!" he answered. "We were going to, when a mad woman who lives there got into the place and found us out. We had them safe, the two of them, when the worst thing happened which could have befallen us. Andrew de la Borne broke in upon us."

The Princess listened with set face. What are the answers to this following set of questions: 1. What did the Princess' hand do?
2. What did she bring the man?
3. Did she take a seat by him?
4. Who had reluctantly withdrawn?
5. What had Jeanne done?
6. For what reason?
7. Who was then let in?
8. Did the princess look at his arm?
9. What did she look at?
10. Who asked if everything was okay?
11. What did Nigel then do?
12. Did he look older than before?
13. What kind of liquor did he ask for?
14. Did Forrest empty his glass?
15. Who did Forrest say found them out?
16. Who else broke in on them?
Answer:
1. it shook
2. a tumbler
3. yes
4. The Count
5. gone to her room
6. she pleaded fatigue
7. Forrest
8. no
9. his drawn face
10. The Princess.
11. threw himself into a chair
12. yes
13. brandy
14. yes
15. a mad woman
16. Andrew de la Borne