380day.year

Theodosius I makes his adventus, or formal entry, into Constantinople.

Emperor Theodosius I makes a grand ceremonial entry (adventus) into Constantinople, marking the beginning of his reign over the Eastern Roman Empire.
The adventus was a formal procession that symbolized imperial authority and public acclamation. Theodosius I arrived to great fanfare, with citizens lining the streets to honor their new emperor. This event set the tone for his rule and his efforts to strengthen the unity of the empire. He later became known for his role in establishing Nicene Christianity as the state religion. The celebration in Constantinople showcased the political and religious importance of the capital during Late Antiquity. It also highlighted Theodosius's ambition to assert his legitimacy following the death of his predecessor.
380 Theodosius I adventus Constantinople
1190day.year

Conrad of Montferrat becomes King of Jerusalem upon his marriage to Isabella I of Jerusalem.

Conrad of Montferrat marries Queen Isabella I and ascends to the throne of Jerusalem, strengthening his claim during the Third Crusade.
Conrad of Montferrat, a key leader in the Crusader States, secured his claim to power by marrying Queen Isabella I of Jerusalem on this day in 1190. The union followed a period of factional disputes and served to bolster defenses against Saladin's forces. Conrad had earned a reputation defending Tyre against sieges and was seen as a capable protector of Christian territories. His brief reign was marked by intense political maneuvering amid the wider conflict of the Third Crusade. Only weeks later, he was assassinated under mysterious circumstances, plunging Jerusalem into further leadership turmoil. His marriage and sudden death underscored the precarious nature of Crusader politics and the constant danger surrounding the holy city.
1190 Conrad of Montferrat King of Jerusalem Isabella I of Jerusalem
1221day.year

Genghis Khan defeats the renegade Khwarazmian prince Jalal al-Din at the Battle of the Indus, completing the Mongol conquest of Central Asia.

Genghis Khan achieves a decisive victory over Jalal al-Din at the Battle of the Indus, completing the Mongol conquest of Central Asia.
After a grueling campaign, the Mongol armies led by Genghis Khan engaged Khwarazmian prince Jalal al-Din's forces at the banks of the Indus River. Superior Mongol cavalry tactics and coordination overwhelmed the Khwarazmian troops despite their fierce resistance. The defeat marked the collapse of organized Central Asian opposition to Mongol expansion. With this victory, Genghis Khan secured control over the region and paved the way for future advances into the Indian subcontinent. The battle demonstrated the effectiveness of Mongol strategy and the far-reaching impact of Genghis Khan's military leadership. Chronicles from the period highlight the swift nature of the conquest and the psychological blow dealt to Jalal al-Din's followers. This decisive moment symbolized the unstoppable momentum of the Mongol Empire.
1221 Genghis Khan Khwarazmian Jalal al-Din Battle of the Indus Mongol conquest of Central Asia
1227day.year

Gąsawa massacre: At an assembly of Piast dukes at Gąsawa, Polish Prince Leszek the White, Duke Henry the Bearded and others are attacked by assassins while bathing.

Assassins ambush Piast dukes at a gathering in Gąsawa, killing Prince Leszek the White and wounding others.
During an assembly of Piast dukes at Gąsawa in 1227, a group of assassins launched a surprise attack while the nobles were bathing. Prince Leszek the White was struck down, and Duke Henry the Bearded suffered serious wounds. The massacre was a stark manifestation of the fierce rivalries between regional Polish rulers. It sent shockwaves through the fragmented Polish principalities, leading to further power struggles and succession disputes. Historical accounts suggest the attack was orchestrated by adversaries seeking to alter the balance of power within the Piast dynasty. The violent episode highlighted the precarious nature of medieval Polish politics. In its aftermath, alliances shifted and the path toward greater consolidation of power became even more complex.
1227 Gąsawa massacre Piast Gąsawa Leszek the White Henry the Bearded
1248day.year

An overnight landslide on the north side of Mont Granier, one of the largest historical rockslope failures ever recorded in Europe, destroys five villages.

A massive landslide on Mont Granier in Savoy obliterates five villages, marking one of Europe’s largest historical rock slope failures.
In the pre-dawn hours, a massive section of the northern face of Mont Granier collapsed, releasing millions of cubic meters of rock. Five villages at the mountain's base were engulfed by the debris, resulting in a catastrophic loss of life and property. Contemporary witnesses described the thunderous roar and the sky darkening under a cloud of dust. This event is recognized as one of Europe’s largest historical rock slope failures. Modern geologists study the tragedy to understand mountain stability and early warning indicators. The transformed landscape still bears the scars of the collapse, drawing hikers and researchers alike. Those ruins stand as a somber testament to the power of natural disasters in shaping human history.
1248 Mont Granier
1359day.year

Peter I of Cyprus ascends the throne of Cyprus after his father, Hugh IV of Cyprus, abdicates.

Peter I ascends the throne of Cyprus following the voluntary abdication of his father, Hugh IV of Cyprus.
Peter I assumed the Cypriot throne after his father Hugh IV abdicated in his favor, beginning his reign over the Lusignan Kingdom of Cyprus. He later gained renown for leading military expeditions to support crusader efforts in the Near East. Known for his chivalric ideals, Peter sought to strengthen Cyprus’s defenses and foster alliances with Western European powers. His diplomatic missions aimed to secure funds and troops for campaigns against Muslim-held territories. Despite facing financial and political challenges, he won fame for his courage and ambition. Peter's rule marked a period of renewed enthusiasm for crusading among the island’s noble class. His efforts reinforced Cyprus’s strategic importance in the Eastern Mediterranean.
1359 Peter I of Cyprus Hugh IV of Cyprus
1429day.year

Hundred Years' War: Joan of Arc unsuccessfully besieges La Charité.

Joan of Arc leads a siege against the fortress of La Charité but is unable to capture the stronghold during the Hundred Years' War.
Buoyed by earlier triumphs, Joan of Arc led French forces in an attack on La Charité, a fortress held by Burgundian allies of England. Despite her resolve and leadership, the strong defenses and lack of sufficient artillery forced a withdrawal. Joan was wounded during the assaults, revealing the harsh realities beyond her famed victories. The failed siege exposed the logistical challenges facing French commanders late in the Hundred Years' War. It also marked one of her final military campaigns before her capture. Contemporary accounts note that the siege tested Joan's reputation and the morale of her troops. While unsuccessful, the operation underscored her enduring influence on France's war effort.
1429 Hundred Years' War Joan of Arc besieges La Charité
1542day.year

Battle of Solway Moss: An English army defeats a much larger Scottish force near the River Esk in Dumfries and Galloway.

An English army achieves victory over a larger Scottish force at the Battle of Solway Moss, near the River Esk in Dumfries and Galloway.
On the banks of the River Esk in Dumfries and Galloway, English forces engaged a numerically superior Scottish army in the Battle of Solway Moss. The Scots, hampered by unfamiliar marshy terrain, were quickly routed by a disciplined English infantry and cavalry. Many Scots were captured amid the confusion, leading to a significant blow to Scottish military strength. The defeat undermined the authority of King James V and hastened his demise later that year. The battle also intensified England's leverage over Scotland during the ensuing diplomatic negotiations known as the Rough Wooing. It highlighted the brutal effectiveness of Tudor military organization along the volatile border. Solway Moss remains remembered as a key encounter in the long Anglo-Scottish conflicts.
1542 Battle of Solway Moss River Esk Dumfries and Galloway
1642day.year

Abel Tasman becomes the first European to discover the island Van Diemen's Land (later renamed Tasmania).

Dutch navigator Abel Tasman becomes the first European to sight and chart Van Diemen's Land, later known as Tasmania.
On this voyage, Abel Tasman sailed east from the New Zealand coastline until he sighted the jagged shores of Van Diemen's Land. He charted the island's outline but did not attempt to land, recording only brief observations of its wooded cliffs. Tasman's meticulous maps expanded European understanding of the southern Pacific region. His logs noted unfamiliar wildlife and plant life along the coast. Though the island would later be renamed Tasmania, his discovery remained its official European 'birth.' Subsequent explorers used Tasman's charts to navigate the treacherous waters of Bass Strait. This moment marked a significant chapter in the era of global maritime exploration.
1642 Abel Tasman Van Diemen's Land Tasmania
1750day.year

Tarabai, regent of the Maratha Empire, imprisons Rajaram II of Satara for refusing to remove Balaji Baji Rao from the post of peshwa.

Regent Tarabai of the Maratha Empire arrests Rajaram II of Satara over a power struggle with Peshwa Balaji Baji Rao.
In the power struggles of the Maratha Empire, Regent Tarabai confronted Peshwa Balaji Baji Rao over the direction of government. When the young Raja Rajaram II refused to remove the Peshwa from his position, Tarabai ordered his imprisonment at the royal court in Satara. This decisive action exposed the growing influence of the Peshwas at the expense of traditional royal authority. The incident deepened divisions among Maratha nobility and led to further factional rivalries. Tarabai's bold move temporarily secured her grip on power but also set the stage for future conflicts. The event illustrates the shifting dynamics between nominal monarchs and their prime ministers. It remains a pivotal episode in the evolution of Maratha governance during the 18th century.
1750 Tarabai Maratha Empire Rajaram II of Satara Balaji Baji Rao peshwa
1832day.year

South Carolina passes the Ordinance of Nullification, declaring that the Tariffs of 1828 and 1832 were null and void in the state, beginning the Nullification Crisis.

In 1832, South Carolina enacted the Ordinance of Nullification, rejecting federal tariffs and igniting the Nullification Crisis.
In November 1832, South Carolina passed the Ordinance of Nullification, declaring the Tariffs of 1828 and 1832 null and void within the state. The measure was a bold assertion of state sovereignty against federal power and tested President Andrew Jackson’s authority. South Carolina threatened to secede if the laws were enforced by force. The crisis prompted Congress to pass a Compromise Tariff and the Force Bill, authorizing Jackson to use military measures if necessary. Ultimately, a political compromise averted war, but the Nullification Crisis left a lasting impact on the debate over states' rights and federal authority.
1832 South Carolina Ordinance of Nullification Tariffs of 1828 1832 Nullification Crisis
1835day.year

The Texas Provincial Government authorizes the creation of a horse-mounted police force called the Texas Rangers (which is now the Texas Ranger Division of the Texas Department of Public Safety).

In 1835, the provisional government of Texas authorized the creation of a mounted police force that would evolve into the storied Texas Rangers.
As the Republic of Texas faced lawlessness on its frontier, the Provincial Government authorized a mounted police force on November 24, 1835. These early Rangers patrolled vast territories, protecting settlers from bandits and Native American raids. The group’s origins were informal, but their reputation for toughness and fairness quickly grew. Over the decades, the Texas Rangers evolved into the Texas Ranger Division of the Texas Department of Public Safety. Their legacy has become intertwined with Texas folklore, shaping the state’s identity and law enforcement traditions.
1835 authorizes the creation Texas Ranger Division Texas Department of Public Safety