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Immigration to Europe has a long history, but increased substantially in the later 20th century. Especially Western European countries saw a high growth in immigration after World War II and many European nations today (particularly those of the EU-15) have sizeable immigrant populations, both of European and non-European origin. In contemporary globalization, migrations to Europe have accelerated in speed and scale. Over the last decades, there has been an increase in negative attitudes towards immigration, and many studies have emphasized marked differences in the strength of antiimmigrant attitudes among European countries. Recent immigrants fall into the categories of migrant/foreign workers (both legal and illegal) and refugees. Beginning in 2004, the European Union has granted EU citizens a freedom of movement and residence within the EU, and the term "immigrant" has since mostly been used to refer to extracomunitarian (i.e. non-EU) citizens. Between 2010 and 2013, around 1.4 million non-EU nationals, excluding asylum seekers and refugees, immigrated into the EU each year using regular means, with a slight decrease since 2010.〔(【引用サイトリンク】url=http://ec.europa.eu/dgs/home-affairs/e-library/docs/infographics/immigration/migration-in-eu-infographic_en.pdf )〕 In 2015 the number of immigrants arriving from outside Europe increased substantially due to the so-called European migrant crisis. ==Historical migration== Early historical migration into or within Europe has mostly taken the form of military invasion, but there have been exceptions; this concerns notably population movements within the Roman Empire under the ''Pax Romana''; the Jewish diaspora in Europe was the result of the First Jewish–Roman War of AD 66–73. With the collapse of the Roman Empire, migration was again mostly coupled with warlike invasion, not least during the so-called Migration period (Germanic migrations), the Slavic migrations, the Hungarian conquest of the Carpathian Basin, the Islamic conquests and the Turkic expansion into Eastern Europe (Kipchaks, Tatars, Cumans). The Ottomans once again established a multi-ethnic imperial structure across Western Asia and Southeastern Europe, but Turkification in Southeastern Europe was due more to cultural assimilation than to mass immigration. In the late medieval period, the Romani people migrated into Europe both via Anatolia and the Maghreb. There were substantial population movements within Europe throughout the Early Modern period, mostly in the context of the Reformation and the European wars of religion, and again as a result of World War II. Until the late 1960s and 1970s, Greece, Ireland, Italy, Norway,〔http://www.regjeringen.no/upload/BLD/IMA/Report_oecd_2010_final.pdf〕 Portugal, Spain and the United Kingdom were primarily sources of emigration, sending large numbers of emigrants to the Americas and Australia. A number also went to other European countries (notably France, Switzerland, Germany and Belgium). As living standards in these countries have risen, the trend has reversed and they were a magnet for immigration (most notably from Morocco, Somalia, Egypt to Italy and Greece; from Morocco, Algeria and Latin America to Spain and Portugal; and from Ireland, India, Pakistan, Germany, the United States, Bangladesh, and Jamaica to the United Kingdom). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Immigration to Europe」の詳細全文を読む スポンサード リンク
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