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File No. 333-86941
Rule 497(d)
Supplement Dated November 3, 1999 to
Part B of the Prospectus Dated October 26, 1999
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NUVEEN UNIT TRUSTS, Series 66
Dorsey, Wright Relative Strength 5 Portfolio, October 1999 (the "Portfolio")
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Effective November 3, 1999, the following shall be added to Part B of the
Portfolio's Prospectus:
Dorsey, Wright License Agreement
Nuveen and Dorsey, Wright & Associates, Inc. ("Dorsey, Wright") have
entered into an agreement granting Nuveen a limited license to use the results
of Dorsey, Wright's proprietary method of stock selection known as the
"Relative Strength Method" and to use the Dorsey, Wright name and certain
other trademarks in connection with the Dorsey, Wright Relative Strength 5
Portfolio (the "Portfolio"). Although the securities selected for the
Portfolio by Nuveen are based upon Dorsey, Wright's Relative Strength Method,
Dorsey, Wright is not the sponsor or distributor of the Portfolio and will not
make any determination of the suitability of an investment in the Portfolio
with respect to any investor nor is Dorsey, Wright recommending the Portfolio
to any particular investors. Investors in the Portfolio should consult with
and obtain the advice of their own financial advisors prior to investing in
the Portfolio. In addition, Dorsey, Wright is not responsible for the
establishment, operation, administration, marketing or liquidation of the
Trust associated with the Portfolio or for providing ongoing research on the
securities selected for the Portfolio. Nuveen has the sole right, in the
interest of the Portfolio, to determine whether to retain, sell, redeem,
liquidate or dispose of a particular security in the Portfolio. Dorsey, Wright
is not a broker or dealer and will not participate in the offer and sale of
the Portfolio, including without limitation the determination of the public
offering price of the Portfolio or the establishment of any trading market for
the Portfolio.
The agreement between Nuveen and Dorsey, Wright provides that Dorsey,
Wright shall not be liable to Nuveen, its affiliates, officers, directors, or
employees, or to the Portfolio or any investors in the Portfolio, for any
loss, damage, liability, claim or expense arising out of or in connection with
the performance by Dorsey, Wright of the agreement, whether resulting from
Dorsey, Wright's actions or omissions to act or otherwise, other than
liability arising from the breach of certain representations and warranties in
the agreement.
DORSEY, WRIGHT MAKES NO WARRANTY, EXPRESS OR IMPLIED, AS TO RESULTS TO BE
OBTAINED BY NUVEEN, INVESTORS IN THE DORSEY, WRIGHT RELATIVE STRENGTH FIVE
PORTFOLIO OR ANY OTHER PERSON OR ENTITY FROM THE USE OF THE RELATIVE STRENGTH
METHOD OR ANY DATA INCLUDED THEREIN. DORSEY, WRIGHT EXPRESSLY DISCLAIMS ALL
WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE OR USE.
DORSEY, WRIGHT SHALL HAVE NO LIABILITY FOR LOST PROFITS OR INDIRECT, PUNITIVE,
SPECIAL OR CONSEQUENTIAL DAMAGES (INCLUDING LOST PROFITS), EVEN IF ADVISED OF
THE POSSIBILITY OF SUCH DAMAGES.
PLEASE RETAIN FOR FUTURE REFERENCE
