Question: About how many millions of people lived in the continent the first leg of Queen's mid 2000s tour with Electric's performer took place in year 1000?

<P0-S0> the rockefeller center christmas tree is a large christmas tree placed annually in rockefeller center, in midtown manhattan. <P0-S1> the tree is erected in mid november and lit in a public ceremony in late november or early december. <P0-S2> since 1997, the lighting has been broadcast live, to hundreds of millions, on nbc's "christmas in rockefeller center" telecast on a wednesday after thanksgiving. <P0-S3> the broadcast features live entertainment and a tree lighting ceremony, where the tree is lit by the current mayor of new york city and special guests. <P0-S4> an estimated 125 million people visit the attraction each year. <SEP> <P1-S0> The High Middle Ages was a period of tremendous expansion of population. <P1-S1> The estimated population of Europe grew from 35 to 80 million between 1000 and 1347, although the exact causes remain unclear: improved agricultural techniques, the decline of slaveholding, a more clement climate and the lack of invasion have all been suggested. <P1-S2> As much as 90 per cent of the European population remained rural peasants. <P1-S3> Many were no longer settled in isolated farms but had gathered into small communities, usually known as manors or villages. <P1-S4> These peasants were often subject to noble overlords and owed them rents and other services, in a system known as manorialism. <P1-S5> There remained a few free peasants throughout this period and beyond, with more of them in the regions of Southern Europe than in the north. <P1-S6> The practice of assarting, or bringing new lands into production by offering incentives to the peasants who settled them, also contributed to the expansion of population. <SEP> <P2-S0> on 15 august 2006, brian may confirmed through his website and fan club that queen + paul rodgers would begin producing their first studio album beginning in october, to be recorded at a "secret location". <P2-S1> queen + paul rodgers performed at the nelson mandela 90th birthday tribute held in hyde park, london on 27 june 2008, to commemorate mandela's ninetieth birthday, and again promote awareness of the hiv/aids pandemic. <P2-S2> the first queen + paul rodgers album, titled the cosmos rocks, was released in europe on 12 september 2008 and in the united states on 28 october 2008. following the release of the album, the band again went on a tour through europe, opening on kharkiv's freedom square in front of 350,000 ukrainian fans. <P2-S3> the kharkiv concert was later released on dvd. <P2-S4> the tour then moved to russia, and the band performed two sold-out shows at the moscow arena. <P2-S5> having completed the first leg of its extensive european tour, which saw the band play 15 sold-out dates across nine countries, the uk leg of the tour sold out within 90 minutes of going on sale and included three london dates, the first of which was the o2 on 13 october. <P2-S6> the last leg of the tour took place in south america, and included a sold-out concert at the estadio josé amalfitani, buenos aires. <SEP> <P3-S0> Electric (fully as Paul Rodgers Electric according to Paul Rodgers official site) is a studio album by Paul Rodgers of Free and Bad Company fame. <P3-S1> It was recorded in 1999 at Lartington Hall Studios near Barnard Castle in the North East of England. <P3-S2> Electric was released in 2000 (the Japanese version of 1999 has a bonus track). <SEP> <P4-S0> Between 2005 and 2006, Queen + Paul Rodgers embarked on a world tour, which was the first time Queen toured since their last tour with Freddie Mercury in 1986. <P4-S1> The band's drummer Roger Taylor commented; "We never thought we would tour again, Paul [Rodgers] came along by chance and we seemed to have a chemistry. <P4-S2> Paul is just such a great singer. <P4-S3> He's not trying to be Freddie." <P4-S4> The first leg was in Europe, the second in Japan, and the third in the US in 2006. <P4-S5> Queen received the inaugural VH1 Rock Honors at the Mandalay Bay Events Center in Las Vegas, Nevada, on 25 May 2006. <P4-S6> The Foo Fighters paid homage to the band in performing "Tie Your Mother Down" to open the ceremony before being joined on stage by May, Taylor, and Paul Rodgers, who played a selection of Queen hits.