The Ancient Egyptian and Babylonia Mathematicians in 150BC.
I think you need to understand algebra 2 before you begin trigonometry
Angles were known before trigonometry. Trigonometry was the study of angles and their relationship to shapes.
The first recorded use of trigonometry came from the Hellenistic mathematician Hipparchus
Trigonometry came first thousands of years ago. Calculus was only discovered several hundered years ago.
Basic math. When you begin calculus you will move into intermediate mathematics.
Bartholomaeus Pitiscus is best known for his book called Trigonometria which was first published in Heidelburg in 1595. It consists of work on plane and spherical trigonometry. The book had the first recorded mention of the word "trigonometry".
Trigonometry goes back to ancient times. The first trigonometric table is attributed to Hipparchus of Nicaea.
Learn the subject!
Thales
If you are asking what culture first developed trigonometry, the study of triangles can be traced back to the Egyptians and Babylonians as early as the 2nd millennium BC.
plane trigonometry spherical trigonometry
Bartholomaeus Pitiscus