The question is extremely vague. “Ancient” covers a large period of time that had varied technologies. “Communication” is also a very vague term. That being said, I will attempt to give an answer.
I am assuming that you are asking about human communication. One of the things that distinguishes humans from animals is speech. Probably the most ancient means of communication was speech. Hand gestures, body language, and facial expressions are also a means of communication. Dance and music were also very ancient means of communication.
Messengers with verbal messages, signal fires, totems, banners, cave art, etc. were ancient means of communication that predate history.
Proto alphabets and pictographs were used as early as 60,000 years ago. Such script was found on egg shells dating back that far and found in southwestern Africa.
Genuine writing began as early as 5,000 years BC with the Vinca script (although this is disputed). It is undisputed that cuneiform script was in use in what is now Iraq about 3,000 BC. This early writing was typically impressed on clay tablets and allowed to dry. Small tablets could be transported between distant locations. Some script was also present on pottery. Rudimentary codes were used for distant communication with signal fires. Drums could be heard at great distances and were also used to communicate. Once paper was invented, things really took off, literally. Messenger pigeons were used as early as 1150 in Baghdad and also later by Genghis Khan. This ancient means of aerial communication was still in wide use in World War I.
More common were couriers on horseback that would take written messages quickly between people at distances. In ancient Persia (Iran) they had messengers, called angros that would carry messages in stations that had a day's ride distance along the royal road. The riders were exclusively in the service of government. A message could be transported from Susa (south western Iran) to Sardis (western Turkey), a distance of 1,677 miles in just seven days. The same journey took ninety days on foot. This type of system was later used by the Romans. Messages were also transported by boats and ships.
Even ancient communication could be relatively fast.
I belive the answer is maintained
Even though Many scientific movements started to arise during the Renaissance period, most European families that lived in this period still give their children deep education in religion. The tradition is carried out even until today (more than 70% of European population are Christian)
Brahmanism is a religion of transition between the Vedic religion (completed around the 6th century BC) and the Hindu religion (which began around the third century AD).
According to other authors, Brahmanism (or Brahmanical religion) is the same as Vedicism (or Vedic religion).
Maybe since the 4th century BC C. began to know the Upanishad, which were stories (written by Brahmins) where a Brahmin teacher taught his disciple about a unique God who was superior to the Vedic gods. They preferred meditation to opulent animal sacrifices and the ritual consumption of the soma psychotropic drug.
The Brahmins became the sole repositories of knowledge about the unique Brahman (the formless Divine, generator of all gods). There were no longer Chatrías who had spiritual knowledge, but had to become disciples of a Brahmin at some point in their lives.
From the third century or II a. C. they began to recite everywhere the extensive poems Majábharata and Ramaiana as well as the doctrinal treatises (agamas) of the different dárshanas (religious schools) that constitute a body of knowledge that has endured throughout history and has more than 280 million faithful.
