Question: The Homecoming of Beorhtnoth Beorhthelm's Son is mainly a dialogue between two characters in the aftermath of a battle that took place on what day ?

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Battle of Clitheroe: The Battle of Clitheroe was a battle between a force of Scots and English knights and men at arms which took place on 10 June 1138 during the period of The Anarchy.  The battle was fought on the southern edge of the Bowland Fells, at Clitheroe, Lancashire.  It took place in the course of an invasion of England by King David I of Scotland.  In the summer of 1138, King David split his army into two forces.  One of them, commanded by William fitz Duncan, Mormaer of Moray, marched into Lancashire.  There he harried Furness and Craven.  On 10 June, William fitz Duncan was met by a force of knights and men-at-arms.  A pitched battle took place and the result was that the English army was routed.  The battle was a prelude to the Battle of the Standard later in the summer, where the result was reversed.

HJ-Story: HJ-Story is a free and independently published webcomic illustrated by Andrew Hou.  The comic strip centers mainly around two characters based on him and his wife.  Although fans may feel they are following the artist’s love story with his wife, the illustrations mostly stand independently with no continuity between strips.  Unlike traditional comic strips, there is rarely any verbal dialogue between the two characters, but more of suggestion of communication via emoticons.

The Life and Death of Mr Badman: The Life and Death of Mr. Badman; Presented to the World in a Familiar Dialogue Between Mr. Wiseman and Mr. Attentive is a 1680 book by John Bunyan.  It was designed as a companion to "The Pilgrim's Progress" and was published by Nathaniel Ponder.  The two characters have a dialogue about sin and redemption over the course of a long day.

The Homecoming of Beorhtnoth Beorhthelm's Son: The Homecoming of Beorhtnoth Beorhthelm's Son is the title of a work by J. R. R. Tolkien that was originally published in 1953 in volume 6 of the scholarly journal "Essays and Studies by Members of the English Association", and later republished in 1966 in "The Tolkien Reader".  It is a work of historical fiction, inspired by the Old English poem "The Battle of Maldon".  It is written in the form of an alliterative poem, but is also a play, being mainly a dialogue between two characters in the aftermath of the Battle of Maldon.  The work was accompanied by two essays, also by Tolkien, one before and one after the main work.

Battle of Maldon: The Battle of Maldon took place on 10 or 11 August 991 CE near Maldon beside the River Blackwater in Essex, England, during the reign of Æthelred the Unready.  Earl Byrhtnoth and his thegns led the English against a Viking invasion.  The battle ended in an Anglo-Saxon defeat.  After the battle Archbishop Sigeric of Canterbury and the aldermen of the south-western provinces advised King Æthelred to buy off the Vikings rather than continue the armed struggle.  The result was a payment of 10,000 Roman pounds (3,300 kg) of silver, the first example of Danegeld in England.

There's a Hole in My Bucket: "There's a Hole in My Bucket" (or "...in the Bucket") is a children's song, based on a dialogue between two characters, called Henry and Liza, about a leaky bucket.  The song describes a deadlock situation: Henry has a leaky bucket, and Liza tells him to repair it.  But to fix the leaky bucket, he needs straw.  To cut the straw, he needs an axe.  To sharpen the axe, he needs to wet the sharpening stone.  To wet the stone, he needs water.  However, when Henry asks how to get the water, Liza's answer is "in a bucket".  It is implied that only the leaky bucket is available, which, if it could carry water, would need no repairing in the first place.

Battle of Norfolk: The Battle of Norfolk was a tank battle fought on February 27, 1991, during the Persian Gulf War, between armored forces of the United States and United Kingdom, and those of the Ba'athist Iraqi Republican Guard.  The primary participants were the U.S. 2nd Armored Division (Forward),1st Infantry Division (Mechanized), and the Iraqi 18th Mechanized and 9th Armoured Brigades of the Republican Guard Tawakalna Mechanized Infantry Division along with elements from eleven other Iraqi divisions.  The 2nd Armored Division(Fwd) was assigned to the American 1st Infantry Division as its 3rd maneuver brigade due to the fact that one of its brigades was not deployed.  The British 1st Armoured division was responsible for protecting the right flank of VII Corps.  Its main adversary being the Iraqi 52nd Armored Division and multiple infantry divisions.  It was the final battle of the war before the unilateral ceasefire took effect.  Two more battles occurred at Objective Dorset and near the oil field at Rumaila after the ceasefire.  The Battle of Norfolk has been recognized by some sources as the second largest tank battle in American history and the largest tank battle of the 1st Gulf War.  No fewer than 12 divisions participated in the Battle of Norfolk along with multiple brigades and elements of a regiment.  American and British forces destroyed approximately 750 Iraqi tanks and hundreds of other types of combat vehicles.  This goes without even taking into consideration the destruction of two additional Republican Guard divisions at Objective Dorset by the 3rd Armored Division on 28 February 1991.  During this action the 3rd Armored Division destroyed 250 enemy vehicles and captured 2,500 Iraqi soldiers.  Over a decade passed after the conflict before quality references became available on most of the battles that took place during the 1st Gulf War.  Many of the land battles during Operation Desert Storm were larger than the majority of the battles that took place in southern and western Europe during World War Two, at least as far as the quantity of equipment involved.

Battle of Kuwait International Airport: The Battle of Kuwait International Airport occurred on February 27, 1991 during the 1st Gulf War.  It was a tank battle between the United States and Ba'athist Iraq.  Despite being a very large battle it is often overlooked compared to the other battles which took place during the war.  No less than elements of 18 divisions total participated in this battle.  U.S. Army Special Forces units and multiple Iraqi Commando units were also in theatre.  In reality the battle took place over a span of three days despite the primary battle at Kuwait International Airport lasting only one day.  Much of the combat actually took place en route to the airport.  The battle featured the "Reveille Engagement" which went on to become the biggest and fastest tank battle in United States Marine Corps' entire history.

Landscape (play): Landscape is a one-act play by Harold Pinter that was first broadcast on radio in 1968 and first performed on stage in 1969.  The play shows the difficulties of communication between two people in a marriage.  This is illustrated through the two characters who appear to be talking to one another though neither seems to hear the other.  The dialogue resembles two independent monologues.  The play is often studied, read, and performed alongside "Silence", another one-act play published soon after "Landscape".  Both plays mark a change in Pinter's style, with echoes of the work of Samuel Beckett.  In both plays nothing happens, the action of the plays is brought to a halt putting an added emphasis on the role of the dialogues and monologues that take place.  As one critic put it "nothing happens but much is explored".

Battle of Nablus (1918): The Battle of Nablus took place, together with the Battle of Sharon during the set piece Battle of Megiddo between 19 and 25 September 1918 in the last months of the Sinai and Palestine Campaign of the First World War.  Fighting took place in the Judean Hills where the British Empire's XX Corps attacked the Ottoman Empire's Yildirim Army Group's Seventh Army defending their line in front of Nablus.  This battle was also fought on the right flank in the Jordan Valley, where Chaytor's Force attacked and captured the Jordan River crossings, before attacking the Fourth Army at Es Salt and Amman capturing many thousands of prisoners and extensive territory.  The Battle of Nablus began half a day after the main Battle of Sharon, which was fought on the Mediterranean section of the front line where the XXI Corps attacked the Eighth Army defending the line in front of Tulkarm and Tabsor and the Desert Mounted Corps which rode north to capture the Esdrealon Plain.  Together these two battles, known as the Battle of Megiddo, began the Final Offensive of the war in the Sinai and Palestine campaign.

Supporting paragraphs: The Homecoming of Beorhtnoth Beorhthelm's Son Battle of Maldon
Answer: 10 or 11 August 991 CE