** Twitchett, Denis and Frederick W. Mote, eds.

** 1578 – 1603: George Frederick I / I / I / I ( Regent, also Margrave of Brandenburg-Ansbach, Margrave of Brandenburg-Kulmbach and Duke of Brandenburg-Jägerndorf )

** 1603 – 1608: Joachim I / I / III Frederick ( Regent, also Duke of Brandenburg-Jägerndorf and Elector of Brandenburg )

** Frederick of Utrecht

** Richard III ( 1912 film ), a silent film starring Frederick Warde

** Frederick Seitz, American scientist ( d. 2008 )

** Frederick Lane, Australian swimmer ( b. 1888 )

** Frederick VIII, King of Denmark ( b. 1843 ).

** U. S. Ordnance troops find the coffins of Frederick Wilhelm I, Frederick the Great, Paul von Hindenburg, and his wife.

** Frederick Peters, American film actor ( b. 1884 )

** Frederick Lawton, 9th Director of the Office of Management and Budget ( d. 1975 )

** Frederick Hawksworth, GWR Chief mechanical engineer.

** Frederick William Franz, a member of the Governing Body of Jehovah's Witnesses and 4th President of Watch Tower Bible and Tract Society ( b. 1893 )

** Frederick Chapman Robbins, American pediatrician and virologist, recipient of the Nobel Prize in Physiology or Medicine ( d. 2003 )

** Frederick C. Weyand, U. S. Army General ( d. 2010 )

** Frederick Fisher, Canadian VC recipient ( killed in action ) ( b. 1894 )

** King Frederick VI ( Denmark ) ( 1808 – 1839 ) and ( Norway ) ( 1808 – 1814 )

** Frederick William III of Prussia ( Prussia )

** Prince Frederick Charles of Hesse ( b. 1868 )

** Frederick Jackson Turner gives a lecture titled " The Significance of the Frontier in American History " before the American Historical Association in Chicago.

** Frederick Pitcher, Nauruan politician

** Frederick Orr-Lewis, Canadian businessman ( d. 1921 )

** Frederick William, Elector of Brandenburg starts to rule.

** Eunectes murinus, the green anaconda, the largest species, is found east of the Andes in Colombia, Venezuela, the Guianas, Ecuador, Peru, Bolivia, Brazil and on the island of Trinidad.

** Eunectes notaeus, the yellow anaconda, a smaller species, is found in eastern Bolivia, southern Brazil, Paraguay and northeastern Argentina.

** Eunectes deschauenseei, the dark-spotted anaconda, is a rare species found in northeastern Brazil and coastal French Guiana.

** Eunectes beniensis, the Bolivian anaconda, the most recently defined species, is found in the Departments of Beni and Pando in Bolivia.

** Tarski's theorem: For every infinite set A, there is a bijective map between the sets A and A × A.

** The Cartesian product of any family of nonempty sets is nonempty.

** König's theorem: Colloquially, the sum of a sequence of cardinals is strictly less than the product of a sequence of larger cardinals.

** Hausdorff maximal principle: In any partially ordered set, every totally ordered subset is contained in a maximal totally ordered subset.

** For every non-empty set S there is a binary operation defined on S that makes it a group.

** Tychonoff's theorem stating that every product of compact topological spaces is compact.

** In the product topology, the closure of a product of subsets is equal to the product of the closures.

** If S is a set of sentences of first-order logic and B is a consistent subset of S, then B is included in a set that is maximal among consistent subsets of S. The special case where S is the set of all first-order sentences in a given signature is weaker, equivalent to the Boolean prime ideal theorem ; see the section " Weaker forms " below.

** Any union of countably many countable sets is itself countable.

** If the set A is infinite, then there exists an injection from the natural numbers N to A ( see Dedekind infinite ).

** Every infinite game in which is a Borel subset of Baire space is determined.

** The Vitali theorem on the existence of non-measurable sets which states that there is a subset of the real numbers that is not Lebesgue measurable.

** The Lebesgue measure of a countable disjoint union of measurable sets is equal to the sum of the measures of the individual sets.

** The Nielsen – Schreier theorem, that every subgroup of a free group is free.