Problem: Cooper was born on May 7, 1901, in Helena, Montana to Alice (nee Brazier, 1873-1967) and Charles Henry Cooper (1865-1946). His father had emigrated from Houghton Regis, Bedfordshire and was a prominent lawyer, rancher, and (later) a Montana Supreme Court justice. His mother had emigrated from Gillingham, Kent and married Charles in Montana. In 1906, Charles purchased the 600-acre (240 ha) Seven-Bar-Nine cattle ranch about fifty miles (eighty kilometers) north of Helena near the town of Craig on the Missouri River.

In early 1925, Cooper began his film career in silent pictures such as The Thundering Herd and Wild Horse Mesa with Jack Holt, Riders of the Purple Sage and The Lucky Horseshoe with Tom Mix, and The Trail Rider with Buck Jones. He worked for several Poverty Row studios, including Famous Players-Lasky and Fox Film Corporation. While his skilled horsemanship led to steady work in Westerns, Cooper found the stunt work--which sometimes injured horses and riders--"tough and cruel". Hoping to move beyond the risky stunt work and obtain acting roles, Cooper paid for a screen test and hired casting director Nan Collins to work as his agent. Knowing that other actors were using the name "Frank Cooper", Collins suggested he change his first name to "Gary" after her hometown of Gary, Indiana. Cooper immediately liked the name. Cooper also found work in a variety of non-Western films, appearing, for example, as a masked Cossack in The Eagle (1925), as a Roman guard in Ben-Hur (1925), and as a flood survivor in The Johnstown Flood (1926). Gradually, he began to land credited roles that offered him more screen time, in films such as Tricks (1925), in which he played the film's antagonist, and the short film Lightnin' Wins (1926). As a featured player, he began to attract the attention of major film studios. On June 1, 1926, Cooper signed a contract with Samuel Goldwyn Productions for fifty dollars a week. Cooper's first important film role was in The Winning of Barbara Worth (1926) with Ronald Colman and Vilma Banky, in which he plays a young engineer who helps a rival suitor save the woman he loves and her town from an impending dam disaster. Cooper's experience living among the Montana cowboys gave his performance an "instinctive authenticity", according to biographer Jeffrey Meyers. The film was a major success. Critics singled out Cooper as a "dynamic new personality" and future star. Goldwyn rushed to offer Cooper a long-term contract, but he held out for a better deal--finally signing a five-year contract with Jesse L. Lasky at Paramount Pictures for $175 a week. In 1927, with help from Clara Bow, Cooper landed high-profile roles in Children of Divorce and Wings, the latter being the first film to win an Academy Award for Best Picture. That year, Cooper also appeared in his first starring roles in Arizona Bound and Nevada--both films directed by John Waters. In 1928, Paramount paired Cooper with a youthful Fay Wray in The Legion of the Condemned and The First Kiss--advertising them as the studio's "glorious young lovers". Their on-screen chemistry failed to generate much excitement with audiences. With each new film, Cooper's acting skills improved and his popularity continued to grow, especially among female movie-goers. During this time, he was earning as much as $2,750 per film and receiving a thousand fan letters a week. Looking to exploit Cooper's growing audience appeal, the studio placed him opposite popular leading ladies such as Evelyn Brent in Beau Sabreur, Florence Vidor in Doomsday, and Esther Ralston in Half a Bride. That year, Cooper also made Lilac Time with Colleen Moore for First National Pictures, his first movie with synchronized music and sound effects. It became one of the most commercially successful films of 1928.

what is an important fact in this article?

Answer with quotes: he change his first name to "Gary" after her hometown of Gary, Indiana.

Problem: Roger Federer (German pronunciation: ['rodZ@r 'fe:d@r@r]; born 8 August 1981) is a Swiss professional tennis player who is currently ranked world No. 2 in men's singles tennis by the Association of Tennis Professionals (ATP). He is regarded by many fans, players and analysts as the greatest tennis player of all time. Federer has won 20 Grand Slam singles titles--the most in history for a male player--and has held the world No. 1 spot in the ATP rankings for a record total of 308 weeks, including 237 consecutive weeks. After turning professional in 1998, he was continuously ranked in the top ten from October 2002 to November 2016.

Federer entered the top 100 ranking for the first time on 20 September 1999 and started at the 1999 Marseille Open defeating the reigning champion of the 1998 French Open, Spaniard Carlos Moya. His first final came at the Marseille Open in 2000, where he lost to fellow Swiss Marc Rosset. Federer won the 2001 Hopman Cup representing Switzerland, along with Martina Hingis. The duo defeated the American pair of Monica Seles and Jan-Michael Gambill in the finals. Federer would later say that his experience with Hingis "definitely helped me to become the player I am today." Federer's first singles win was at the 2001 Milan Indoor tournament, where he defeated Julien Boutter in the final. Although he won his first title already in 1999 on the Challenger tour, winning the doubles event in Segovia, Spain with Dutchman Sander Groen, the final was played on Federer's 18th birthday. In 2001, Federer made his first Grand Slam quarterfinal at the French Open, losing to former world No. 2 and eventual finalist Alex Corretja. His run to the French quarterfinals launched him into the top 15 for the first time in his career. His international breakthrough came at the 2001 Wimbledon Championships, where a 19-year-old Federer faced the four-time defending champion and all-time Grand Slam leader Pete Sampras. The teenage Swiss stunned the seven-time Wimbledon champion and No. 1 seed in a dramatic five-set epic to reach the quarterfinals. In the quarters he faced Englishman Tim Henman, eventually losing in an overtime fourth-set tiebreaker. Federer's breakthrough at Wimbledon signaled the record-breaking dominance he would display at the All England Club over the next two decades. The first final he reached at the prestigious Masters level came at the 2002 Miami Masters event, where he lost to former and future world No. 1 Andre Agassi on hard court. Federer won his first Master Series event at the 2002 Hamburg Masters on clay, over Marat Safin; the victory put him in top 10 for the first time. Federer made 10 singles finals between 1998 and 2002, of which he won four and lost six. He also made six finals in doubles. Of note are Federer and partner Max Mirnyi's defeat in the final of the Indian Wells Masters in 2002, and their victory in the same year in the final of the Rotterdam 500 series event. Federer had won the latter a year earlier with partner Jonas Bjorkman. He finished 2001 with an ATP ranking of No. 13, and 2002 was the first year he was ranked within the top 10, finishing at No. 6.

Did he have any notable wins during this period?

Answer with quotes:
Although he won his first title already in 1999 on the Challenger tour, winning the doubles event in Segovia,