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        <ReturnReference>PART V, LINE 4:</ReturnReference>
        <Explanation>THE INCOME FROM ENDOWMENT FUNDS FROM DONORS IS USED FOR SPECIFIC PURPOSES, SUCH AS PRIZES, LECTURES, SCHOLARSHIPS, GRANTS AND OUTREACH PROJECTS. THE MAJORITY OF THE ENDOWMENT FUNDS ARE BOARD-DESIGNATED FUNDS. THESE FUNDS INCLUDE: (1) THE JOURNAL ARCHIVE FUND, WHICH PROVIDES FUNDING FOR THE SOCIETY TO CHANGE ITS ARCHIVAL FORMATTING OF ITS PUBLICATION WHEN REQUIRED IN THE FUTURE; (2) THE YOUNG SCHOLARS FUND, WHICH PROVIDES SUPPORT TO SUMMER MATH CAMPS FOR TALENTED YOUNG STUDENTS; (3) THE OPERATING SUPPORT FUND, WHICH SUPPORTS THE OPERATING ACTIVITIES OF THE SOCIETY; (4) THE ECONOMIC STABILIZATION FUND, WHICH IS A TRUE RESERVE FUND FOR THE SOCIETY TO USE SHOULD ECONOMIC EMERGENCIES ARISE.</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Identifier>DESCRIPTION OF UNCERTAIN TAX POSITIONS UNDER FIN 48:</Identifier>
        <ReturnReference>PART X:</ReturnReference>
        <Explanation>THE SOCIETY ACCOUNTS FOR THE EFFECT OF ANY UNCERTAIN TAX POSITIONS BASED ON A "MORE LIKELY THAN NOT" THRESHOLD TO THE RECOGNITION OF THE TAX POSITIONS BEING SUSTAINED BASED ON THE TECHNICAL MERITS OF THE POSITION UNDER SCRUTINY BY THE APPLICABLE TAXING AUTHORITY. IF A TAX POSITION OR POSITIONS ARE DEEMED TO RESULT IN UNCERTAINTIES OF THOSE POSITIONS, THE UNRECOGNIZED TAX BENEFIT IS ESTIMATED BASED ON A "CUMULATIVE PROBABILITY ASSESSMENT" THAT AGGREGATES THE ESTIMATED TAX LIABILITY FOR ALL UNCERTAIN TAX POSITIONS. THE SOCIETY HAS IDENTIFIED ITS TAX STATUS AS A TAX-EXEMPT ENTITY AS ITS ONLY SIGNIFICANT TAX POSITION; HOWEVER, THE SOCIETY HAS DETERMINED THAT SUCH TAX POSITION DOES NOT RESULT IN AN UNCERTAINTY REQUIRING RECOGNITION. THE SOCIETY IS NOT CURRENTLY UNDER EXAMINATION BY ANY TAXING JURISDICTION. THE SOCIETY'S FEDERAL AND STATE TAX RETURNS ARE GENERALLY OPEN FOR EXAMINATION FOR THREE YEARS FOLLOWING THE DATE FILED.</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Identifier>PART XI, LINE 8 - OTHER ADJUSTMENTS:</Identifier>
        <Explanation>POSTRETIREMENT BENEFIT - RELATED CHANGES -1,102,350.</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Identifier>PART XII, LINE 2D - OTHER ADJUSTMENTS:</Identifier>
        <Explanation>POSTRETIREMENT BENEFIT - RELATED CHANGES -1,102,350. ROUNDING 1.</Explanation>
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      <AcctsActvsOutUSTable>
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      <Form990ScheduleIPartIII>
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        <AmountOfCashGrant>1000</AmountOfCashGrant>
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      <Form990ScheduleIPartIII>
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        <AmountOfCashGrant>5000</AmountOfCashGrant>
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        <AmountOfCashGrant>5000</AmountOfCashGrant>
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        <TypeOfGrant>STEELE PRIZE - MATH EXPO</TypeOfGrant>
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        <AmountOfCashGrant>5000</AmountOfCashGrant>
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      <Form990ScheduleIPartIII>
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        <NumberOfRecipients>2</NumberOfRecipients>
        <AmountOfCashGrant>5000</AmountOfCashGrant>
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      <Form990ScheduleIPartIII>
        <TypeOfGrant>MATH IN MOSCOW</TypeOfGrant>
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        <AmountOfCashGrant>37800</AmountOfCashGrant>
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      <Form990ScheduleIPartIII>
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        <NumberOfRecipients>1</NumberOfRecipients>
        <AmountOfCashGrant>2500</AmountOfCashGrant>
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      <Form990ScheduleIPartIII>
        <TypeOfGrant>SATTER PRIZE</TypeOfGrant>
        <NumberOfRecipients>1</NumberOfRecipients>
        <AmountOfCashGrant>5000</AmountOfCashGrant>
      </Form990ScheduleIPartIII>
      <Form990ScheduleIPartIII>
        <TypeOfGrant>DOOB PRIZE</TypeOfGrant>
        <NumberOfRecipients>2</NumberOfRecipients>
        <AmountOfCashGrant>5000</AmountOfCashGrant>
      </Form990ScheduleIPartIII>
      <Form990ScheduleIPartIII>
        <TypeOfGrant>MORGAN PRIZE</TypeOfGrant>
        <NumberOfRecipients>1</NumberOfRecipients>
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        <Identifier>PROCEDURE FOR MONITORING GRANTS IN THE U.S.:</Identifier>
        <ReturnReference>PART I, LINE 2:</ReturnReference>
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        <Identifier>SCHEDULE I, PART I, LINE 2:</Identifier>
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      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION A, LINE 6</ReturnReference>
        <Explanation>THE SOCIETY HAS MORE THAN 30,000 MEMBERS, INDIVIDUAL AND INSTITUTIONAL, WITH NO CRITERIA FOR MEMBERSHIP.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION A, LINE 7A</ReturnReference>
        <Explanation>THE INDIVIDUAL MEMBERSHIP ELECTS ALL BOARD MEMBERS, EXCEPT THE TREASURER AND ASSOCIATE TREASURER. THE TREASURER AND ASSOCIATE TREASURER SERVE WITH APPROVAL OF THE COUNCIL. A SECOND GOVERNING BODY, THE COUNCIL, HAS SOME MEMBERS THAT ARE ELECTED BY THE MEMBERSHIP. CHANGES TO THE BYLAWS MUST BE APPROVED BY THE MEMBERSHIP.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION A, LINE 7B</ReturnReference>
        <Explanation>THE INDIVIDUAL MEMBERSHIP ELECTS ALL BOARD MEMBERS, EXCEPT THE TREASURER AND ASSOCIATE TREASURER. THE TREASURER AND ASSOCIATE TREASURER SERVE WITH APPROVAL OF THE COUNCIL. A SECOND GOVERNING BODY, THE COUNCIL, HAS SOME MEMBERS THAT ARE ELECTED BY THE MEMBERSHIP. CHANGES TO THE BYLAWS MUST BE APPROVED BY THE MEMBERSHIP.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 11</ReturnReference>
        <Explanation>THE 990 IS PREPARED BY THE FISCAL DEPARTMENT AND THE SOCIETY'S TAX ADVISORS, CBIZ TOFIAS. WHEN THE FINAL DRAFT IS PREPARED, IT IS REVIEWED BY THE CHIEF FINANCIAL OFFICER AND THE EXECUTIVE DIRECTOR. AFTER THIS REVIEW, THE BOARD OF TRUSTEES IS ASKED TO REVIEW THE 990 ELECTRONICALLY BY ACCESSING A SECURE INTERNET SITE. THEY ARE GIVEN APPROXIMATELY THREE TO FIVE BUSINESS DAYS TO REVIEW THE DRAFT. AFTER RESPONDING TO ANY FEEDBACK FROM THE TRUSTEES, THE FILING IS MADE.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 12C</ReturnReference>
        <Explanation>AMS OFFICERS, TRUSTEES, AND KEY EMPLOYEES, WHO ARE DEFINED AS INTERESTED PERSONS, ARE REQUIRED TO DISCLOSE ANNUALLY FINANCIAL INTERESTS THAT COULD GIVE RISE TO CONFLICTS BY SIGNING OFF ON THE CONFLICT OF INTEREST POLICY. THE AMS ADOPTED THIS POLICY IN NOVEMBER 2011 AND TRUSTEES SIGNED OFF ON THIS POLICY IN NOVEMBER. EACH NOVEMBER TRUSTEES AND KEY EMPLOYEES WILL BE ASKED TO AGAIN SIGN OFF ON THE POLICY AND DISCLOSE ANY POSSIBLE OR ACTUAL CONFLICTS. AN INTERESTED PERSON MUST DISCLOSE A FINANCIAL INTEREST, AS DEFINED BY THE IRS, THAT IS A POTENTIAL CONFLICT TO THE BOARD OF TRUSTEES OR COMMITTEE WHO WILL DECIDE IF A CONFLICT EXISTS. IF THE BOARD OF TRUSTEES OR COMMITTEE WITH BOARD-DELEGATED POWERS, EXCLUDING THE INTERESTED PERSON, DECIDES THAT A CONFLICT EXISTS, ALTERNATIVE TRANSACTIONS OR ARRANGEMENTS MIGHT BE MADE AFTER INVESTIGATING IN ORDER TO AVOID THE CONFLICT. ALTERNATIVELY, DISINTERESTED PERSONS ON THE BOARD OF TRUSTEES OR COMMITTEE MAY DETERMINE THAT A TRANSACTION IS FAIR OR REASONABLE AND IN THE BEST INTERESTS OF THE ORGANIZATION. THE INTERESTED PERSON WHO HAS A CONFLICT MAY NOT VOTE ON MATTERS FOR WHICH THERE IS A CONFLICT OF INTEREST AND THEY MUST BE EXCLUDED FROM DISCUSSIONS OF MATTERS FOR WHICH THERE IS A CONFLICT OF INTEREST.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 15</ReturnReference>
        <Explanation>THE BOARD OF TRUSTEES REVIEWS AND APPROVES WITH THE EXECUTIVE DIRECTOR THE PROCESS BY WHICH THE EXECUTIVE DIRECTOR ESTABLISHES THE SALARY AND BENEFITS OF THE CHIEF FINANCIAL OFFICER AND KEY EMPLOYEES FOR THE UPCOMING YEAR. INCLUDED IN THIS REVIEW IS COMPARISON DATA FROM COMPENSATION SURVEYS. WITH RESPECT TO THE EXECUTIVE DIRECTOR, THE BOARD IS PROVIDED COMPARISON DATA FROM COMPENSATION SURVEYS. THE BOARD TAKES INTO CONSIDERATION THE COMPENSATION SURVEYS AND JOB PERFORMANCE IN SETTING THE EXECUTVIE DIRECTOR'S COMPENSATION FOR THE FOLLOWING YEAR. ALL COMPENSATION SURVEYS USED FOR SETTING THE EXECUTIVE DIRECTOR AND KEY EMPLOYEES SALARIES ARE FROM INDEPENDENT SOURCES, AND THEY ARE GATHERED BY A HUMAN RESOURCES PROFESSIONAL. THE BOARD DOCUMENTS THEIR PROCESS FOR SETTING THE SALARIES EACH YEAR.</Explanation>
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      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION C, LINE 19</ReturnReference>
        <Explanation>SHORTLY AFTER FILING, THE SOCIETY'S FORM 990 AND ALL SCHEDULES (EXCLUDING SCHEDULE B) IS COPIED AND MADE AVAILABLE TO THE SOCIETY'S THREE LOCATIONS. IF ANYONE REQUESTS TO SEE THE FORM 990 AND SCHEDULES, COPIES ARE PROVIDED BY STAFF MAIL OR EMAIL. THE SOCIETY'S GOVERNING DOCUMENTS ARE ON THE SOCIETY'S WEBSITE. THE ANNUAL REPORT OF THE TREASURER, INCLUDING THE FINANCIAL STATEMENT, IS PUBLISHED EACH YEAR IN THE SOCIETY'S PUBLICATION, NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, AS WELL AS THE ANNUAL REPORT. THESE PUBLICATIONS ARE AVAILABLE ON THE WEBSITE.</Explanation>
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        <Identifier>CHANGES IN NET ASSETS OR FUND BALANCES:</Identifier>
        <ReturnReference>FORM 990, PART XI, LINE 5:</ReturnReference>
        <Explanation>NET UNREALIZED LOSSES ON INVESTMENTS: -1,134,171. POSTRETIREMENT BENEFIT - RELATED CHANGES -1,102,350. TOTAL TO FORM 990, PART XI, LINE 5: -2,236,521.</Explanation>
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