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In page L. L. Zamenhof:
"His project, Lingwe uniwersala, was finished by 1878.[11] He went to Moscow the next year to study medicine. While there, he experienced the rise of antisemitism in the Russian Empire at the time, and became involved with Zionism. He returned to Warsaw to finish his studies and began an ophthalmology residency in 1885.[5] He began his practice as a doctor in Veisiejai. After 1886, he worked as an ophthalmologist in Płock and Vienna.[citation needed] While healing people there, he continued to work on his project of an international language.[12]
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