…Bonna (Bonn).

The Treaty of Bonn, which calls itself a "pact of friendship" (amicitia), is signed between Charles III of France and Henry I of Germany on November 7, 921, in a brisk ceremony aboard a ship in the middle of the Rhine not far from Bonn.

The use of the river, which is the border between their two kingdoms, as a neutral territory has extensive Carolingian precedents and was also used in classical antiquity and in contemporary Anglo-Saxon England.

The treaty recognizes the border of the two realms and the authority of their respective kings.

It confirms the legitimacy of Henry's election by the German princes and of Charles's rule over Lotharingia through the election by its princes.

In the treaty, Henry is titled rex Francorum orientalium (King of the East Franks) and Charles rex Francorum occidentalium (King of the West Franks) in recognition of the division it makes of the former Frankish Empire.

Charles and his bishops and counts sign first, both because he has been king longer and because he is of Carolingian stock.

Henry, having captured a Hungarian prince, manages in 926 to arrange a ten-year-truce, though he is forced to pay tribute.

Frederick the Fair of the House of Habsburg had been elected King of the Romans at Sachsenhausen (Frankfurt am Main) on October 19 by four of the electors, being crowned on November 25 at Bonn Minster.

...the persecution has raged most violently in Bonn, his own capital, where the chancellor and his wife and the archbishop’s secretary’s wife are executed, children of three and four years are accused of having devils for their paramours, and students and small boys of noble birth sent to the bonfire.

Dutch troops commanded by Montecuccoli and Prince William III of Orange on November 13, 1673, conquer Bonn, the seat of the Archdiocese of Cologne.

...Bonn fall to ...

The Holy Family, a book written by Marx and Engels in November 1844, is a critique on the Young Hegelians and their trend of thought, which is very popular in academic circles at this time.

The title is a suggestion by the publisher and is meant as a sarcastic reference to the Bauer Brothers and their supporters.

The book will create a controversy with much of the press and cause Bruno Bauer to attempt refuting the book in an article published in Wigand's Vierteljahrsschrift in 1845.

Bauer will claim that Marx and Engels misunderstood what he was trying to say.

Marx will later reply to his response with his own article published in the journal Gesellschaftsspiegel in January 1846.

Marx will also discuss the argument in chapter two of The German Ideology.

The first known description of the platelet is given by Max Schultze in 1865.

Born at Freiburg in Breisgau (Baden), Schultze had studied medicine at Greifswald and Berlin, and had been appointed extraordinary professor at Halle in 1854 and five years later ordinary professor of anatomy and histology and director of the Anatomical Institute at Bonn.

He had founded, in 1865, and edited the important Archiv für mikroskopische Anatomie, to which he contributes many papers, and he advances the subject generally, by refining on its technical methods.

His name is especially known for his work on the cell theory.

Uniting Félix Dujardin's conception of animal sarcode with Hugo von Mohl's of vegetable protoplasma, he points out their identity, and includes them under the common name of protoplasm, defining the cell as a nucleated mass of protoplasm with or without a cell wall (Das Protoplasma der Rhizopoden und der Pflanzenzellen; ein Beiträg zur Theorie der Zelle, 1863).

...the Federal Republic of Germany (West Germany) for infiltration into Albania.