the alternation is the act and the result of
switching. This verb, which comes from the Latin
word alternāre, has several meanings, generally linked to the
variation or distribution of something.
For example: "The alternation between slow themes and other moving ones
makes the album have different climates", "We cannot allow indefinite
reelection: without alternation in power, democracy does not exist", "The
coach announced that he will not choose a single captain, but will opt for
alternation so that several players can wear the tape ".
The idea of alternation appears in the field of biology with
reference to the succession of asexual and sexual generations when
plant or animal species reproduce. In sexual reproduction, the alternation of
the nuclear phases occurs. Meiosis results in a haploid phase, while gametes
then fuse to form the diploid phase.
The crop rotation, on the other hand, refers to the
practice of various growing plants in the same space through a series of
cycles. In this way, the soil is not depleted. Furthermore, since plants have
different needs and characteristics, diseases or pests do not
In the field of politics, there is talk of alternation to
refer to the change of government. If the same political party
governs for several consecutive electoral periods, or because there are no
direct elections, the alternation does not exist: power is always held by the
same sector. On the other hand, if the Conservative Party governs
four years, then the Liberal Party for four years and later
the Conservative Party returns, the alternation of power
Precisely a perfect example of political alternation of this type is found in
Spain. In this country, in the late nineteenth and early twentieth centuries, a
bipartisan system was established with alternation in the government of the
Restoration. The two parties that were “taking turns” at the head of the country
were the Liberal Party, which had Práxedes Mateo Sagasta as its leader, and the
Conservative Party, whose main person in charge was Antonio Cánovas del Castillo
This stage, which was inspired by the existing model in the United Kingdom,
put an end to the existing political pluralism and was also called
turnismo. During this process, who was in charge of deciding which party should
be in charge of the country was the king, Alfonso XII. And it did so taking into
account the attrition that the political group in question or the needs of the
people might have at that time.
It is considered that with this measure of taking turns in power, to a
certain extent, riots and all kinds of pronouncements came to a halt.
In this process, an important role is also played by what was called the El
Pardo Pact. It seems that it was an agreement that Sagasta and Cánovas reached
at the moment in which the imminent death of the monarch was expected. In order
to avoid an instability situation when this died, they certified the need to
reach consensus between both formations in favor of the country. That is to say,
to establish a turn of parties.