Before the conquest, the Romans had annexed lands to the southeast extending beyond the Rhine River. They penetrated the Netherlands region mainly to control the several mouths of the Rhine, which were then farther to the north than they are now. Under Roman rule, general peace and prosperity prevailed for more than 250 years. Roman traders entered the area freely, selling products from Italy and Gaul. The Romans built temples, established a number of large farms, and introduced their civilization to the region.

About AD 300 the hold by the Romans began to weaken, and nonindigenous German tribes pushed into the area from the east. The Frisians, in the north, held their ground, but Saxons occupied the eastern part of the region, and the Franks moved into the west and south.

In the early Middle Ages such political entities as the counties of Flanders and Holland, the bishopric of Utrecht, and the duchies of Brabant and Gelderland were established. In the far north, however, the Frisians did not submit to a regional ruler but continued to obey their local headmen. The association of the Netherlands with the Holy Roman Empire remained largely nominal throughout the Middle Ages. Some trade was conducted with German coastal cities to the east, such as Bremen and Hamburg, but the major cultural influence came from France.

Through marriage, war, and political maneuvering, most of the region comprising the present-day Netherlands—Holland, Utrecht, Noord-Brabant, and Gelderland—came into the hands of the dukes of Bourgogne during the 15th and early 16th centuries. By 1519 this area was under the benevolent control of Holy Roman emperor Charles V, of the Spanish branch of the house of Habsburg, who was also king of Spain. In 1555, however, Charles resigned both Spain and the Netherlands to his son, Philip II, who was Spanish by birth and education and had little liking for his northern European territories. His oppressive rule led to the epochal war of independence waged from 1568 to 1648 by the Dutch against Spain, then the most powerful nation in Europe.

From 1609 to 1621 a truce was in effect between the Spanish and the Dutch, but the war subsequently dragged on until 1648, when the Spanish signed the Treaty of Münster, by which the sovereignty of the Dutch Republic of the United Provinces was recognized. The republic thus severed all theoretical ties with Spain and the Holy Roman Empire and became one of the great powers on the Continent, a republic in the midst of monarchies.

About 1600 a Dutch merchant expedition of three vessels sailed from Amsterdam to Java. This was the first of numerous journeys that left Dutch geographic names scattered over the globe, from Spitsbergen to Cape Horn and from Staten Island to Tasmania. These voyages resulted in the establishment or acquisition of many trading stations in Africa, Southeast Asia, and America.

In 1602 the Dutch parliament granted to the Dutch East India Company a charter that gave it a trading monopoly with all countries east of the Cape of Good Hope in Africa and west of the Strait of Magellan in South America. The charter also conferred many sovereign powers on the company, including the right to wage war and to conclude peace. The West India Company, founded in 1621, established colonies in the West Indies, Brazil, and North America.

The East India Company established itself first in the Moluccas, or Spice Islands, and later on West Java, where Batavia (modern Jakarta) became the center of the company’s enterprises. These enterprises were devoted mostly to trade and to the establishment of trading posts. Their functions generally did not include governing. Subsequently, pressed by the necessity of maintaining peace among the native rulers, the Dutch began to govern the territories (now called Indonesia) in order to maintain trade.

Under Maurice, the republic was divided by a religio-political conflict between two factions within the Reformed (Calvinist) church, over predestination. The Arminian, or Remonstrant, cause was championed by Holland under its leader, Jan van Olden Barneveldt; the other provinces and Maurice sided with the Gomarists, or High Calvinists, who prevailed. The dispute ended with Barneveldt’s execution for treason in 1619.

Frederick Henry’s son, William II of Orange, became involved in a bitter quarrel with the province of Holland, and after his death no stadtholder was appointed in Holland and four other provinces for more than 20 years. William III of Orange, who was stadtholder from 1672 until his death in 1702, was also king of England after 1689.

Inevitably, the Dutch and the English, the leading maritime trading nations of the world, came into sharp commercial rivalry and military conflict. The issues between the two countries were contested, but not settled, by the two Anglo-Dutch Wars, the first waged from 1652 to 1654 and the second from 1664 to 1667. As a result of the latter conflict the Dutch lost New Amsterdam in North America but acquired Dutch Guiana (now Suriname). Other wars, costly in lives and money, followed against England and France.

After the War of the Spanish Succession (1701-1714), in which the Dutch were allies of the British against the French, the economic and political power of the Netherlands began to decline. Eventually the Dutch Republic was overshadowed by the expanding power of Great Britain on the sea and France on the land.

When William III died without heirs in 1702, a distant relative of his, John William Friso, successfully claimed the Orange title. In 1747 his son became stadtholder in all seven provinces as William IV.

In the late 18th century a struggle broke out between the party of the house of Orange, which had become conservative, and the Patriot Party, which desired democratic reforms. The Orange Party enjoyed a brief triumph with the help of an invading Prussian army in 1787, but in 1795 French troops and a force consisting of self-exiled Dutch citizens replaced the republic of the seven United Provinces with the Batavian Republic, which was modeled on the revolutionary French Republic.

The Batavian Republic survived only until 1806, when Napoleon transformed the country into the kingdom of Holland. In 1810 he incorporated it into the French Empire. While the Dutch were under French rule, the British seized Dutch colonial possessions. After the fall of Napoleon, the independence of the Netherlands was restored in 1815 by the Congress of Vienna. In addition, the territory now comprising Belgium was made part of the kingdom of the Netherlands.

The reunion of the two regions was not a happy one, for they had become widely disparate in political background, tradition, religion, language, and economy. In 1830 the Belgians revolted and established their independence as a sovereign state. A conference in London of the major European powers formulated the conditions of separation in 1831. The stipulations were accepted by the Dutch king under pressure from France and Great Britain. But when they were later revised by the conference in favor of the Belgians, a Dutch army invaded Belgium and routed the opposing forces. The conditions of separation were again revised and were finally accepted by both countries in 1839.

The second half of the 19th century was marked by a liberalization of the Netherlands government under the impact of the revolutions that had swept Europe during the 1840s. The seeds of reform were contained in the new constitution of 1848, which became the foundation of the present democracy. Under its provisions arbitrary personal rule by the monarch was no longer possible. The members of the first chamber of parliament, who had formerly been appointed by the king, were thereafter elected by the provincial states (assemblies). Members of the states and of the second chamber of parliament were chosen by all people paying taxes in excess of a stipulated sum. The almost solidly Roman Catholic southern provinces of Limburg and Noord-Brabant, treated as conquered territories under the republic, had been given equal status with other provinces under the monarchy, but it remained for the constitution of 1848 to remove the religious restrictions against their citizens. Thus a powerful Roman Catholic political party was able to form and to contend with the Liberal group and the emerging conservative Protestant parties. Through the late 19th century, suffrage was gradually extended, and agitation for social reform increased markedly. The rise of a strong Labor Party and the organization of workers into labor unions resulted in further social reforms.

Administration of the colonies was also reformed. In Indonesia, the area under Dutch control was increased, burdensome taxation was gradually abandoned, and, after 1877, no financial surpluses from that colony were used for the benefit of the treasury of the Netherlands.

From about 1880 to 1914 the Netherlands enjoyed an era of economic expansion. The Slotemakers left for America about the time one of the longest booms in Dutch history was beginning.