Robert Lewandowski was born on 21st August 1988 in the capital of Poland, Warsaw. He grew up in a sports family. His father practiced Judo and played Football in the 3 League Hutnik Warsaw. Robert's mother was a volleyball player. Since his childhood, he has loved sport when he was 9 years old, when he enrolled in a little known club from Warsaw, where trained for 7 years in youth teams. Lewandowski was inspired by Legia Warszawa, which brought him to his home.
Lewandowski signed the contract for a year. All season he appeared in the reserves of the clubs. Despite the desire to stop the player by coach 1 of the team, the club did not want Lewandowski because of too weak skills.
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Lewandowski broke down a little but did not give up and signed a contract with the 3 league team Znicz Pruszków. Znicz paid about 1 thousand Euros for him! Lewandowski spent two seasons in Znicz, where he was the king of marksmen twice, in 3 and 2 leagues!
Good two seasons resulted in the transfer to Lech Poznan for 380 thousand Euros. 2008 was considered the biggest discovery of the year. Two weeks later, the British daily "Times" published a list with the names of the fifty most promising riders up to the age of 23, with Lewandowski ranked 32nd, and in his first season won the Polish Cup together with Lech.In the summer of 2009, he reached for the Supercup of Poland in the same season he won the Polish Championship and became the king of 18 goal scorers !
After the end of the season Lewandowski had many bids to negotiate and at last Robert joined Borussi Dortmund.The transfer amounted to EUR 4. 5 million!
On 22 August 2010 he made his debut in Borussia. . . In the first season he won the German Championship in 33 matches, scored 8 goals and get 3 assists.On September 13, 2011 he made his debut in the Champions League in the match against Arsenal. On October 1 of the same year he shot for Borussian his first hat-trick, in winning 4:0 league match against FC Augsburg. 19 October 2011 he scored his premiere goal in the Champions League, in the lost 1:3 game with Olympiakos. It was then the first goal of a Polish footballer in the group phase of the Champions League after almost a two-year break since December 2009, and for the second time in a row it became a German champion and won the German Cup. In the season he scored 47 performances and scored 30 goals.On 16th March 2013, in a match against SC Freiburg, Friedrich Konietzki beat the club record, which won goals in seven consecutive Borussian matches in the middle of the 1960s. On 13th April 2013, in the 29th Bundesliga queue, Lewandowski scored a goal in the 11th consecutive match, Greuther Fürth became the second best player of the Bundesliga in history in terms of the number of matches in a row with a goal scored. Lewandowski became Vice-Champion of the Bundesliga with 24 goals in his third season and became Vice-Champion of the Champions League with 10 hits this season!In the 2012/2013 season he also reached the final of the Champions League with Borussia, where his team surrendered to Bayern Munich at Wembley.
On 27th July 2013, by defeating Bayern in the 4:2 final and in a way taking the lead in the aforementioned Champions League final, he scored his 100th goal in Borussii Dortmund from the BVB Superpuchar Germany. On 15th April 2014 in the German Cup match with VfL Wolfsburg, taking into account all the competitions.On 3rd May 2014, before the match against Hoffenheim, which was Lewandowski's last BVB match at his own stadium, he was officially bid farewell by the authorities and the club's fans; the last match in the team from Dortmund was played on 10th May 2014 against Herthta Berlin.Throughout the 2013/14 season he scored 20 goals in the league and became the king of the Bundesliga.
On 4th January 2014 he signed a 5-year contract with Bayern Munich, whose player was on 1st July 2014 after his contract with Borusia Dortmund had expired. On 9th July 2014 Robert Lewandowski was officially presented by Bayern Munich and at the same time informed of the fact that he was awarded the number 9 on a match shirt.Lewandowski made his debut in the new colours on 22nd August 2014 at the Allianz Arena in the match of the Bundesliga's 1st queue against the VfL Wolfsburg. The first goal in the official Bayern match was scored on 30 August 2014 in the 1:1 draw of the Schalke League in Gelsenkirchen.Robert for the 4th consecutive season became German Champion together with Bayern once won the German Cup and two German Supercups.Once he became the king of the Bundesliga's shooters in his role as a Bayern player. 
I think that I didn't write so much about Bayern because there were supposed to be some curiosities here, not obvious things for someone who was interested in football. Sorry for mistakes I am Polish and my English is average!