Which of these statements best describes the modern era

Modern history, the modern period or the modern era, is the linear, global, historiographical approach to the time frame after post-classical history. ... Contemporary history is the span of historic events from approximately 1945 that are immediately relevant to the present time.

So the 16th century to the 21st century

1. i forgot 2. he was gay 3. they killed a lot of the population 6. they rode horses and had swords we have guns and tanks