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      <FactsAndCircumstancesTestTxt>Current Year Facts and Circumstances: The Foundation qualifies as a public charity under the "facts and circumstances test, based on the facts set forth below:First, the Foundation's public support percentage is well in excess of the required 10%. For the past five years of operation (on a rolling 5-year basis), the Foundation's public support was 21.95%. The following factors also weigh in favor of public charity status under this analysis.Fundraising activities have resulted in broad public sources of support: since its founding, the Foundation has maintained a continuous and bona fide fundraising program to attract funds from the public. The Foundation employs a full-time development staff employees dedicated to soliciting support from individuals, foundations, corporations and government grants. From time to time, the Foundation has also hired independent development specialists. The Foundation also solicits in-kind product and service support from media companies, advertising services and marketing companies who can enhance promotion for the festival.Through all of these efforts, the Foundation has received financial, media and in-kind support from a diverse group of individuals, corporations, foundations and government entities. Since 2008, the Foundation has submitted multiple grant applications to over 45 foundations and government sources, including the National Science Foundation (NSF) and the NYC Cultural Innovation Fund. While not all of these grant applications were accepted, the Foundation has received significant and regular support from foundations such as the Simons Foundation, the John Templeton Foundation, the Alfred P. Sloan Foundation, the Bill and Ann Ziff Foundation, the Kavli Foundation and the Bezos Family Foundation, as well as from the Norwegian Consulate and Norwegian Academy of Science and Letters. The Foundation has also received State and City Funding from the New York City Cultural Development Fund, the New York State Department of Education and the New York State Energy and ResearchDevelopment Authority.Since 2008, the Foundation has actively solicited corporate sponsors for its activities, reaching out to hundreds of corporations. As a result of this outreach, the Foundation has received financial support from corporations such as Google, Verizon, Con Edison, Credit Suisse, IBM, America's Navy, Knopf, Time Warner Cable, Cognizant, IFF, and Northrop Grumman. Although not counted towards public support, the Foundation has consistently been able to reduce its advertising expenditures through contributions of in-kind media support (valued at $120,803 in 2020) from online platforms. The Foundation also actively seeks individual donors by hosting cultivation events and an annual Gala fundraiser. Since 2007, the Foundation has sent over 5,500 invitations to dozens of events that range in size from 20 to 200 guests. In addition, the Foundation has also hosted its annual gala benefit since 2009. Ticket prices to the gala include a portion allocable towards a charitable contribution. From 2009 through 2019, the Foundation has sent more than 23,700 invitations and funding requests in connection with the annual gala. In recent years, between 300 and 400 people attended the annual gala, and many others contributed but did not attend. The aggregate value of individual contributions from the gala has continued to grow.The Foundation has also sought smaller donations from members of the general public who are interested in attending the World Science Festival and/or visit the website. Composition of the Board:The Foundation's board of directors represents the worlds of education, the arts, media, non-profit management and philanthropy. Each director brings a range of expertise and perspectives to the organization, and all directors have been exceedingly generous with their time and expertise, in addition to providing financial support. Tracy Day, one of the co-founders, brings her experience as an executive producer in television journalism to all of the festival's programming. Brian Greene, also a co-founder, is a physicist, mathematician and professor at Columbia University. Because of the educational nature of the Foundation's mission and activities, the Foundation has recruited additional board members from a variety of institutions of higher learning. Gillian Small, University Provost and Senior Vice President for Academic Affairs of Fairleigh Dickinson University and an accomplished scientist and educator, joined the board in January 2012. Alan Alda, an acclaimed actor, writer and director, brings a wealth of expertise and connections from the arts to the festival and has appeared at numerous festival events as a moderator and actor. He has been a member of the board of directors since 2007. Judith Cox has a background in nonprofit management and international projects and has been on the board since 2006. Ann Ziff, a member of the board since 2010, also has significant expertise in non-profit management and fundraising from her service on several non-profit boards; while Ms. Ziff and her family provide significant financial support to the Foundation, they are not the Foundation's largest donors.Broad Public Participation in Programs:The Foundation's educational programming targets a worldwide audience of adults and children. Most programming is designed for non-scientists. Attendance at the World Science Festival in New York City (the Foundation's annual live event spanning five or six days) has grown from 120,000 in 2008 to a cumulative total of over 2.5 million visitors in twelve years. In an effort to reach a broader public, the Foundation began streaming some of its festival programs via the internet in 2011. Since then, the Foundation's live-streaming viewers reached a total of 476,500 global viewers through the 2018 Festival.Over time, the Foundation has dedicated increased resources to presenting digital video content from the Festival, as well as original educational material, on its website, www.worldsciencefestival.com, and on the World Science Festival YouTube channel. The Foundation sends newsletters to its community of 196,901 subscribers to keep them informed of World Science Foundation's digital programming. In 2020, the website was visited by over 561,648 users, generating over 1,032,594 page views. The Festival's YouTube views in 2020 totaled 35,385,803 views, generating 1,041,106,266 minutes of watch time over the calendar year, and bringing the festival's total cumulative views on YouTube to 101.0 million views and 2.1 billion minutes of total watch time, while millions more watched on Facebook. Our subscriber list grew 73.4% to reach 685,800. Through a vigorous program of social media outreach and regular communications to our followers, the festival has established over 350,000 fans on Facebook and built a strong presence on Instagram and other social media outlets.The Foundation also relies on large numbers of volunteers during the festival and throughout the year. For 2020, 207 volunteers donated their time to ensure successful events hosted by the Foundation.</FactsAndCircumstancesTestTxt>
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        <FormAndLineReferenceDesc>Part X : FIN48 Footnote</FormAndLineReferenceDesc>
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    <IRS990ScheduleL documentId="IRS990ScheduleL" softwareId="19009920" softwareVersionNum="2019v5.0">
      <BusTrInvolveInterestedPrsnGrp>
        <NameOfInterested>
          <PersonNm>Brian Greene</PersonNm>
        </NameOfInterested>
        <RelationshipDescriptionTxt>Chairman</RelationshipDescriptionTxt>
        <TransactionAmt>105000</TransactionAmt>
        <TransactionDesc>Consulting</TransactionDesc>
        <SharingOfRevenuesInd>false</SharingOfRevenuesInd>
      </BusTrInvolveInterestedPrsnGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule L, Part V Supplemental Information</FormAndLineReferenceDesc>
        <ExplanationTxt>In September 2016, the Foundation entered into an agreement with an entity (the "Company") that is owned by the Foundation's co-founders, who currently serve as the Foundation's CEO, Tracy Day, and Board Chair, Brian Greene. The agreement provides for compensation to the Company for Brian Greene's ongoing and substantial consulting, advisory and creative services to the Foundation. These services are outside the scope of his duties as Board Chair. The term of the agreement commenced as of the effective date of January 1, 2014 through December 31, 2019 and has been renewed through December 31, 2021.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleL>
    <IRS990ScheduleO documentId="IRS990ScheduleO" softwareId="19009920" softwareVersionNum="2019v5.0">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 2: Description of Business or Family Relationship of Officers, Directors, Et</FormAndLineReferenceDesc>
        <ExplanationTxt>Tracy Day (CEO) and Brian Greene (Chairman) are married.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 11b: Form 990 Review Process</FormAndLineReferenceDesc>
        <ExplanationTxt>Management reviewed a draft of the form 990 and provided edits to the tax preparer. After this process was performed, the form 990 was sent to the full board of directors prior to being filed with the IRS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 12c: Explanation of Monitoring and Enforcement of Conflicts</FormAndLineReferenceDesc>
        <ExplanationTxt>The Foundation's outside General Counsel distributes the conflict of interest policy and conflict of interest questionnaire to each officer, director and key employee on an annual basis, and follows up with each individual to ensure that the questionnaire has been completed. Each officer, director and key employee is asked to certify annually that he/she has reviewed the Foundation's conflict of interest policy and has disclosed any potential or actual conflicts on the questionnaire. The outside General Counsel reviews the responses to the questionnaire to determine if there is anything disclosed that should be brought to the attention of the Board. The questionnaires are maintained with the books and records of the Foundation. In addition to filling out the questionnaire, pursuant to the Foundation's policy, each officer, director and key employee is required to alert the other members of the Board if a transaction or fact arises that could be covered by the Foundation's policy after the individual has completed his or hear annual questionnaire. If the outside General Counsel identifies any transaction that might present a conflict of interest, actual or perceived, she would confer with the President and Chair to discuss how it should be disclosed to the rest of the Board.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 15a: Compensation Review &amp; Approval Process - CEO, Top Management</FormAndLineReferenceDesc>
        <ExplanationTxt>A compensation review is done at the time an increase or new hire compensation package is proposed for the CEO or top management. A review of comparable salaries based on a recognized study, information from 990s of other organizations and a review of the performance of the CEO or top management is performed to determine if the proposed salary falls within comparable salary ranges. After a deliberation of this matter, a new proposed salary and benefit package is voted on. The minutes of the board of directors reflect the nature of this process.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 15b: Compensation Review and Approval Process for Officers and Key Employees</FormAndLineReferenceDesc>
        <ExplanationTxt>A compensation review is done at the time an increase or new hire compensation package is proposed for officers or key employees. A review of comparable salaries based on a recognized study, information from 990s of other organizations and a review of the performance of the officer or key employee is performed to determine if the proposed salary falls within comparable salary ranges. After a deliberation of this matter, a new proposed salary and benefit package is voted on. The minutes of the board of directors reflect the nature of this process.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 19: Other Organization Documents Publicly Available</FormAndLineReferenceDesc>
        <ExplanationTxt>Documents are available upon request.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>