polypropylene floating fabric. Surrounded Islands was completed on May 7, 1983, with the aid of 430 workers and could be admired for two weeks. The workers were outfitted with pink long sleeve shirts with pale blue text written on the back reading “Christo Surrounded Islands”, and then in acknowledging the garment's designer, "designed and produced by Willi Smith". Jeanne-Claude became an American citizen in March 1984. The couple received permission to wrap the Pont Neuf, a bridge in Paris, in August 1985. The bridge stayed wrapped for two weeks (22 Sep - 5 Oct 1985). The Pont Neuf Wrapped attracted three million visitors. Wrapping the Pont Neuf continued the tradition of transforming a sculptural dimension into a work of art. The fabric maintained the principal shapes of the Pont Neuf but it emphasized the details and the proportions. As with Surrounded Islands, workers who assisted with the installation and deinstallation of Pont Neuf Wrapped wore uniforms designed by Willi Smith. 1990s Their 1991 The Umbrellas involved the simultaneous setup of blue and gold umbrellas in Japan and California, respectively. The 3,100-umbrella project cost US$26 million and attracted three million visitors. Christo closed the exhibition early after a woman was killed by a windblown umbrella in California. Separately, a worker was killed during the deconstruction of the Japanese exhibit. Christo and Jeanne-Claude wrapped the Berlin Reichstag building in 1995 following 24 years of governmental lobbying across six Bundestag presidents. Wrapped Reichstag 100,000 square meters of silver fabric draped the building, fastened with blue rope. Christo described the Reichstag wrapping as autobiographical based on his Bulgarian upbringing. The wrapping became symbolic of unified Germany and marked Berlin's return as a world city. The Guardian posthumously described the work as their "most spectacular achievement". In 1998, the artists wrapped trees at the Beyeler Foundation and its nearby Berower Park. Prior attempts had failed to secure government support in St. Louis, Missouri, and Paris. The work was self-funded through sale of photographic documentation and preparatory works, as had become standard for the couple. The Gates Work began on the installation of the couple's most protracted project, The Gates, in New York City's Central Park in January 2005. Its full title, The Gates, Central Park, New York, 1979–2005, refers to the time elapsed between the year of the artists' initial proposal and the year they were allowed to proceed, having received permission from the newly