No, they are not all the same.
Through a lack of education and poor understanding of linguistics
There are hundreds of alphabets and non-alphabetic writing systems in current use on the planet. Go to Omniglot to see them.
The earliest of the known Greek alphabets is the Linear A, c.2000 BC (Minoan civ).
There are complete alphabets (like Latin, Greek, or Cyrillic).There are abjads (alphabets with only consonants, such as Hebrew)There are abugidas, which are segmental writing systems in which consonant–vowel sequences are written as a unitThere are syllabaries (alphabet-like symbols that represent whole syllables, like Japanese katakana).
Korean alphabets are called Hangul. Korean people use their own alphabets call Hangul alphabets. These alphabets was introduced under the king Sejong during Dynasty from 1393-1910.
They use different alphabets
Yes, and their alphabet formed the basis of the Greek and Roman alphabets and today's alphabets.
The new kind of writing that replaced cuneiform was the Phoenician alphabet, which was simpler and easier to learn. This alphabet eventually evolved into the Greek and Latin alphabets, which are the basis for many modern writing systems.
Writing systems around the world use different character languages, including alphabets, syllabaries, logograms, and abjads. These character languages represent sounds, syllables, or meanings in various languages.
Alphabetic writing was invented.
An alphabet which became the basis of Greek and Roman alphabets, and so today's alphabets.
There were no previous alphabets. Prior to the Phoenician alphabet, writing systems involved thousands of pictures to represesent words.