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Rosa Luxemburg (also Rozalia Luxenburg; Polish: Roza Luksemburg; 5 March 1871 - 15 January 1919) was a Polish Marxist theorist, philosopher, economist, anti-war activist, and revolutionary socialist who became a naturalized German citizen at the age of 28. She was, successively, a member of the Social Democracy of the Kingdom of Poland and Lithuania (SDKPiL), the Social Democratic Party of Germany (SPD), the Independent Social Democratic Party (USPD), and the Communist Party of Germany (KPD). In 1915, after the SPD supported German involvement in World War I, she and Karl Liebknecht co-founded the anti-war Spartacus League (Spartakusbund), which eventually became the KPD. During the November Revolution she co-founded the newspaper Die Rote Fahne ("The Red Flag"), the central organ of the Spartacist movement.
Luxemburg wanted to move to Germany to be at the centre of the party struggle, but she had no way of obtaining permission to remain there indefinitely. In April 1897 she married the son of an old friend, Gustav Lubeck, in order to gain a German citizenship. They never lived together and they formally divorced five years later. She returned briefly to Paris, then moved permanently to Berlin to begin her fight for Eduard Bernstein's constitutional reform movement. Luxemburg hated the stifling conservatism of Berlin. She despised Prussian men and resented what she saw as the grip of urban capitalism on social democracy. In the Social Democratic Party of Germany's women's section she met Clara Zetkin, of whom she made a lifelong friend. Between 1907 and his conscription in 1915 she was involved in a love affair with Clara's younger son, Kostja Zetkin, to which approximately 600 surviving letters (now mostly published) bear testimony. Luxemburg was a member of the uncompromising left-wing of the SPD. Their clear position was that the objectives of liberation for the industrial working class and all minorities could be achieved by revolution only. The recently published Letters of Rosa Luxemburg shed important light on her life in Germany. As Irene Gammel writes in a review of the English translation of the book in The Globe and Mail: "The three decades covered by the 230 letters in this collection provide the context for her major contributions as a political activist, socialist theorist and writer." Her reputation was tarnished by Joseph Stalin's cynicism in Questions Concerning the History of Bolshevism. In his rewriting of Russian events he placed the blame for the theory of permanent revolution on Luxemburg's shoulders, with faint praise for her attacks on Karl Kautsky, which she commenced in 1910. According to Gammel, "In her controversial tome of 1913, The Accumulation of Capital, as well as through her work as a co-founder of the radical Spartacus League, Luxemburg helped to shape Germany's young democracy by advancing an international, rather than a nationalist, outlook. This farsightedness partly explains her remarkable popularity as a socialist icon and its continued resonance in movies, novels and memorials dedicated to her life and oeuvre." Gammel also notes that for Luxemburg, "the revolution was a way of life," and yet that the letters also challenge the stereotype of "Red Rosa" as a ruthless fighter. But The Accumulation of Capital sparked angry accusations from the Communist Party of Germany; in 1923 Ruth Fischer and Arkadi Maslow denounced the work as "errors", a derivative work of economic miscalculation known as "spontaneity".
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What did she do there?

Answer:
fight for Eduard Bernstein's constitutional reform movement.

Question:
Joichi "Joi" Ito (Yi Teng Rang Yi , Ito Joichi, born June 19, 1966) is a Japanese activist, entrepreneur, venture capitalist, and director of the MIT Media Lab. Ito is a professor of the practice of media arts and sciences at MIT and a visiting professor of law from practice at the Harvard Law School. Ito has received recognition for his role as an entrepreneur focused on Internet and technology companies and has founded, among other companies, PSINet Japan, Digital Garage and Infoseek Japan.
Ito became a disk jockey working in nightclubs in Chicago such as The Limelight and The Smart Bar and to work with Metasystems Design Group to start a virtual community in Tokyo. Later, Ito ran a nightclub in Roppongi, Japan called XY Relax with help from Joe Shanahan of Metro Chicago/Smart Bar. He helped bring industrial music from Chicago (Wax Trax) and later the rave scene, including importing Anarchic Adjustment to Japan. Ito was the Chairman of Creative Commons from December 2006 until 2012. He is on the board of Digital Garage, Culture Convenience Club (CCC), Tucows, and EPIC, and is on the advisory boards of Creative Commons and WITNESS. He is the founder and CEO of the venture capital firm Neoteny Co., Ltd. In October 2004, he was named to the board of ICANN for a three-year term starting December 2004. In August 2005, he joined the board of the Mozilla Foundation and served until April 2016. He served on the board of the Open Source Initiative (OSI) from March 2005 until April 2007. He currently serves as a Board Emeritus for OSI. He was a founding board member of Expression College for Digital Arts as well as the Zero One Art and Technology Network. In 1999, he served as the Associate to Mr. Mount (the executive producer) on the film The Indian Runner. Ito also served as a Board Member of Energy Conversion Devices from 1995 to 2000. Ito is a venture capitalist and angel investor and was an early stage investor in Kickstarter, Twitter, Six Apart, Technorati, Flickr, SocialText, Dopplr, Last.fm, Rupture, Kongregate, Fotopedia, Diffbot, Formlabs, 3Dsolve and other Internet companies. A vocal advocate of emergent democracy and the sharing economy, Ito is a doctoral candidate in Business Administration focusing on the sharing economy at the Graduate School of International Corporate Strategy, Hitotsubashi University. He is the author of Emergent Democracy. Ito is Senior Visiting Researcher of Keio Research Institute at SFC. In May 2011, it was announced that Ito's company, Digital Garage, will provide PR, marketing, product marketing research and market research for Linkedin Japan. Ito is a PADI IDC Staff Instructor, an Emergency First Responder Instructor Trainer, and a Divers Alert Network (DAN) Instructor Trainer. In recent years, Ito has become critical of what he sees as Japan's inward focus. He stated in a 2011 interview that he thinks Japan needs to look internationally if it is to continue to be "relevant".
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Does he have any other career interests?

Answer:
He is the author of Emergent Democracy. Ito is Senior Visiting Researcher of Keio Research Institute at SFC.