Many old Egyptian paintings, carvings, and hieroglyphs depict a picture of various beings throwing javelins.
Javelins have been used by many countries, through different cultures, and though they have many names, they are still the same thing.
The Javelin is even still used today, though as a sport rather than a weapon. What they are used for has changed, but not the how. The Javelin is a throwing weapon, a long pole with a spear on the tip.
*Disclaimer: I have done extensive research on each of these weapons. I am aware that there are many different versions of each of these weapons. I am not trying to spread false information. If you know and can prove any information wrong, please let me know and I will fix my errors. I have at least three references for all research on the weapons I will discuss through the challenge.