600-Word Economic Motive Exploration Essay

I need a concise, 600-word reference essay that argues economic forces were the chief driver behind 15th-century European exploration. The piece must suit a high-school student's vocab and tone, presenting a clear thesis built around three specific economic themes I want highlighted:

• the scramble for new trade routes amid rising competition,
• the lure of gold and other precious resources,
• and the way nautical and navigational innovations lowered the cost of long-distance ventures.

Use these threads to show how they shaped the decisions of explorers and patrons alike, culminating in Columbus’s 1492 voyage.

Incorporate both primary documents (royal charters, merchant letters, excerpts from Columbus’s log) and reputable secondary analyses by historians to back each claim. Quote sparingly, cite every quotation or borrowed idea in Chicago Manual of Style footnotes, and include a short bibliography. The tone should remain accessible—no jargon—yet historically accurate, with flawless spelling and smooth transitions.

Deliverables:
1. 600 word word-count
2. A bibliography of all sources consulted. Chicago Manual of Style

I will review for accuracy, coherence, originality (plagiarism check), adherence to Chicago format, and readability at the high-school level before releasing final acceptance.