Geographical Features and Demographics of Spain

Structurally, it corresponds to the great depression of the northern and southern sub-plateau, and the depressions of the Ebro and Guadalquivir.

The topography is characterized by a gently rolling landscape, more representative in the provinces of Cordoba and Seville. The soft and erodible nature of the materials causes rapid and intense erosion, resulting in a dense network of gullies and ravines known as badlands.

VOCABULARY

Altitude: Vertical distance from a point to sea level, measured in Spain

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Social Structures and Conflicts in Medieval Castile and Aragon

Late Medieval Iberian Crisis (c. 1340-15th Century)

Around 1340, a crisis emerged due to demographic decline from rivalry with Genoa, high taxes, and currency devaluation. Several banks failed by the late 14th century. The 15th century saw internal rivalries (Biga and Seek) and civil war exacerbate the crisis. Valencia surpassed Barcelona as the financial and commercial capital of the Aragonese crown.

Social Groups and Conflicts

Society in Castile and Aragon: The Nobility

The Christian kingdoms of the

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Social Stratification in 16th-17th Century Spain

Society

Privileged Classes

1. The Nobility

Legal status and geographic location. Internal levels.

The nobility, comprising 15-20% of the population (according to Ruiz Ibáñez and Vincent), was spread throughout the peninsula. The gentry concentrated in the Northern Peninsula, while the nobility held lands in Castile and Andalusia.

At the apex was the Royal Family, followed by the titled nobility and those without dominion. A manor was the area where a noble held legal rights (judicial, political, economic,

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Agricultural Systems and Practices: Intensive, Extensive, and More

Agricultural Systems

Extensive Exploitation: Farming large areas with low yields per unit, requiring less investment and sometimes using traditional techniques like fallow. Common in Spain for cereal cultivation.

Intensive Agriculture: Obtaining high yields of quality products in a small space using techniques like seed selection, fertilizers, irrigation, and crop rotation. Expensive but high-yielding, used in areas with limited arable land and large populations.

Polyculture: Cultivating several different

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Social Transformation and Labor Movements in 19th and 20th Century Spain

Social Transformations, Population Growth, and the Rise of the Labor Movement in Spain

Spanish society, for centuries conditioned by a rigid social structure, underwent significant modifications. In the nineteenth century, particularly after 1833 (the death of Fernando VII), the foundations for a new society were laid, where, in theory, all individuals were equal before the law. Society transitioned from a system of closed estates, with distinct rights and obligations, to a class-based structure,

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Global Energy Consumption: Trends and Alternatives

UNIT 3 INTRODUCTION

Energy consumption is thirty times higher than a century ago. This growth necessitates developing new techniques to enhance the exploitation of existing sources and gradually replace non-renewable ones showing signs of depletion. The goal of developed countries should be the effective and rational use of energy to secure future resources.

HISTORY OF POWER CONSUMPTION

In studying evolution, two variables must be considered: primary energy consumption and transformed (secondary) energy

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