According to the chapter, what is stated about "women's events were introduced" in Records And Famous Performances?
The weight of javelin for men is 800 grams and 2.6 to 2.7 meters long.
Even afterwards the athlete must leave the circle from rear half of the circle.
Gradually more women's events were introduced as time progressed.
The weight of discus for men is 1 kg.n 3.